JP3765699B2 - Playback device, loading method, and recording medium - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a reproducing apparatus, a loading method, and a recording medium that can safely load a recording medium.
[0002]
[Prior art]
With the widespread use of music CDs (compact discs) and the like, disc playback devices represented by CD players have become one of the most popular music playback devices. Such a disk reproducing apparatus employs various loading mechanisms for carrying a CD set by a user onto a turntable.
As an example, FIG. 8 shows a conventional disk reproducing apparatus that employs a loading mechanism called slot-in for loading / unloading a disk without placing it on a tray or the like.
[0003]
As shown in FIG. 8A, when the disc reproducing apparatus 100 detects that the disc 2 is slightly inserted into the insertion slot on the front, the disc reproducing apparatus 100 operates a predetermined disc carry-in mechanism to place the disc 2 in the turntable 101. Bring it up. When the disk 2 reaches the turntable 101, the disk reproducing apparatus 100 operates a predetermined disk lifting mechanism to hold the disk 2 on the turntable 101 as shown in FIG. To do.
[0004]
More specifically, in the disk reproducing apparatus 100, when the disk 2 is inserted into the insertion slot, the loading sensor is turned on, and thereby the loading / unloading motor is driven in the loading direction. In synchronization with the driving of the motor, the slide bar for pressing the down switch for operating the disk lifting mechanism also starts to move.
When the disk 2 reaches the turntable 101, the down switch is pressed by the slide bar, the disk lifting mechanism starts operating, and the disk 2 is chucked on the turntable 101.
[0005]
Thus, in principle, the conventional slot-in type disc reproducing apparatus can accurately carry in from the insertion slot onto the turntable and hold it on the turntable.
[0006]
[Problems to be solved by the invention]
Such a conventional slot-in type disk reproducing apparatus is generally configured such that the down switch for starting the operation of the disk lifting mechanism is pressed by the slide bar as described above. The slide bar has a predetermined initial position when no disc is stored in the disc reproducing apparatus.
That is, in synchronization with the disc moving toward the turntable, the slide bar gradually moves toward the down switch so that the slide bar can press the down switch when the disc reaches the turntable. In addition, the initial position of the slide bar is determined.
[0007]
However, the slide bar may be shifted to a position different from the initial position due to transportation or the like when the disc playback apparatus is shipped. When the disc is loaded in such a state that the slide bar is displaced, the down switch is pressed before the disc reaches the turntable. Even though the disk is in the middle of loading, the operation of the disk lifting mechanism is started, so that there is a problem that the disk is caught in the insertion slot and the disk is damaged.
[0008]
The present invention has been made in view of the above circumstances, and an object thereof is to provide a reproducing apparatus, a loading method, and a recording medium capable of safely loading a recording medium.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, a playback apparatus according to the first aspect of the present invention provides:
Conveying means for conveying the optical disk on the playback unit from the insertion opening, by the drop means for holding lowering the optical disk which has been conveyed by the conveying means to the reproducing unit, a reproducing apparatus for loading the optical disc,
A signal supply means for generating a signal instructing the start of the operation of the lowering means, and supplying the generated signal to the lowering means;
An actuating member which the synchronously moving the transport of by that the optical disk to the conveying means, actuating said signal supplying means,
Drive means for moving the actuating member to a predetermined initial position;
Control means for operating the driving means when the playback apparatus is turned on , and
The actuating member actuates the signal supplying means at a timing when the optical disk reaches the reproduction unit by the conveying means after being moved to an initial position by the driving means.
It is characterized by that.
[0011]
In order to achieve the above object, a playback apparatus according to the second aspect of the present invention provides:
Conveying means for conveying the optical disk on the turntable from the insertion opening, by the drop means for holding lowering the optical disk which has been conveyed by the conveying means to the turntable, a reproducing apparatus for loading the optical disc,
A switch for starting the operation of the lowering means;
A slide bar that slides in synchronism with the conveyance of the optical disk by the conveying means and depresses the switch;
Drive means for moving the slide bar to a predetermined initial position;
Control means for operating the driving means when the playback apparatus is turned on , and
After the slide bar has been moved to the initial position by the driving means, the switch is pressed at a timing when the optical disk reaches the turntable by the conveying means.
It is characterized by that.
[0013]
The control means may determine a state where the optical disk is not stored in the playback device and operate the driving means.
[0014]
In order to achieve the above object, a loading method according to a third aspect of the present invention includes:
A loading method for loading an optical disk by a transport mechanism that transports the optical disk from the insertion port onto the turntable and a lowering mechanism that lowers and holds the optical disk transported by the transport mechanism on the turntable,
An initial drive step of moving a slide bar that slides in synchronization with the conveyance of the optical disc by the conveyance mechanism to a predetermined initial position when the playback apparatus is powered on;
A transport step of transporting the inserted optical disc by controlling the transport mechanism after moving the slide bar to the initial position in the initial drive step;
In response to a switch signal pressed when the optical disk transported in the transport step reaches the turntable, a descent step for controlling the transport mechanism to lower the optical disk on the turntable;
It is characterized by providing.
[0016]
In order to achieve the above object, a recording medium according to the fourth aspect of the present invention provides:
A program for causing a computer to execute a loading method for loading an optical disk by a transport mechanism that transports the optical disk from the insertion port onto the turntable and a lowering mechanism that lowers and holds the optical disk transported by the transport mechanism on the turntable. A recorded recording medium,
An initial drive step for moving a slide bar that slides in synchronization with the conveyance of the optical disk by the conveyance mechanism when the playback device is turned on, and the slide bar is moved to the initial position in the initial drive step In response to the signal of the switch that is pressed at the timing when the inserted optical disk is transported by controlling the transport mechanism, and the optical disk transported in the transport step reaches the turntable, A program for causing the computer to execute a loading method having a lowering step of lowering the optical disk onto the turntable by controlling the transport mechanism .
[0017]
DETAILED DESCRIPTION OF THE INVENTION
A disk playback apparatus according to an embodiment of the present invention will be described below with reference to the drawings.
[0018]
FIG. 1 is a perspective view showing an example of the appearance of a disk reproducing apparatus applied to this embodiment. When the disc reproducing apparatus 1 shown in FIG. 1 detects that the disc 2 is slightly inserted into the insertion slot on the front, the disc reproducing device (not shown) is operated to carry the disc 2 onto the turntable. When the disk 2 reaches the turntable, the disk reproducing device 1 operates a disk lifting mechanism (not shown) to chuck the disk 2 on the turntable.
[0019]
FIG. 2 is a schematic view of the chassis on which the main components in the disk reproducing apparatus 1 are viewed from above. As shown in FIG. 2, sensors 51 to 54 and a turntable 55 are arranged on the chassis.
[0020]
The sensors 51 to 54 are made up of a reflection type optical sensor or a transmission type optical sensor, and detect whether or not the disk 2 is present above each of them. Specifically, the sensor 51 is a loading start detection sensor, the sensors 52 and 53 are 8 cm disc ejection stop position detection sensors, and the sensor 54 is a 12 cm disc ejection stop position detection sensor.
[0021]
The turntable 55 rotates at a predetermined speed while holding the disk 2 loaded by a disk loading mechanism and a disk lifting / lowering mechanism (not shown).
[0022]
FIG. 3 is a schematic view of a part of the disk carry-in mechanism in the disk reproducing apparatus 1 as viewed from the side. As shown in FIG. 3, the disk carry-in mechanism includes a down switch 56, a slide bar 57, and a coil spring 58.
[0023]
The down switch 56 is composed of a micro switch or the like, and starts an operation of a disk lifting mechanism (not shown) when pressed by the slide bar 57.
[0024]
The slide bar 57 slides in synchronization with the drive of a motor (not shown) in the disk carry-in mechanism. The slide bar 57 presses the down switch 56 when the disk 2 reaches the turntable 55 by driving the motor.
The slide bar 57 is provided with a lifting guide groove 59 for guiding the lifting operation of the disk lifting mechanism.
[0025]
The coil spring 58 biases the slide bar 57 away from the down switch 56.
[0026]
FIG. 4 is a block diagram showing an example of the disc playback apparatus 1 having the above-described structure. As shown in FIG. 4, the disc playback apparatus 1 includes a microcomputer 10, a display unit 20, a disc drive unit 30, and a key input unit 40.
[0027]
The microcomputer 10 includes a RAM 11, a ROM 12, a clock generation unit 13, a CPU 14, a display drive unit 15, and an I / O port 16, and controls the entire disk playback device 1. The microcomputer 10 is also configured to include a timer unit (not shown) that is used to determine an operation error of a disk carry-in mechanism or the like in a loading process or the like described later.
[0028]
A RAM (Random Access Memory) 11 stores information indicating the size of the loaded disk 2 when the disk 2 is stored in the disk reproducing apparatus 1, for example, a 12 cm disk or an 8 cm disk.
[0029]
A ROM (Read Only Memory) 12 stores in advance program codes for executing initial ejection processing, loading processing, ejection processing, and the like, which will be described later.
[0030]
The clock generation unit 13 includes a crystal oscillation element or the like, generates an operation clock having a predetermined frequency, and supplies the operation clock to the CPU 14.
[0031]
A CPU (Central Processing Unit) 14 executes initial ejection processing, loading processing, ejection processing, and the like according to the program code stored in the ROM 12.
[0032]
The display drive unit 15 includes a liquid crystal driver and the like, and is controlled by the CPU 14 to display a predetermined character or the like on the display unit 20.
[0033]
An I / O (Input / Output) port 16 outputs an operation instruction or the like sent from the CPU 14 to the disk drive unit 30 to load or eject the disk 2. The I / O port 16 inputs an input signal sent from the key input unit 40.
[0034]
The display unit 20 includes, for example, a liquid crystal display panel and displays characters and the like according to information supplied from the display driving unit 15.
[0035]
The disk drive unit 30 includes a sensor input unit 31, a switch input unit 32, a load mute output unit 33, a loading output unit 34, and a motor 35.
[0036]
The sensor input unit 31 inputs signals sent from the sensors 51 to 54 shown in FIG. 2 and supplies the signals to the CPU 14 via the I / O port 16.
[0037]
The switch input unit 32 inputs a signal sent from the down switch 56 shown in FIG. 3 and supplies it to the CPU 14 via the I / O port 16.
[0038]
The load mute output unit 33 controls driving of the motor 35. Specifically, the load mute output unit 33 is controlled by the CPU 14 via the I / O port 16, generates an output signal of “Hi” or “Low” level, and outputs it to the motor 35. When the load mute output unit 33 outputs “Hi”, the motor 35 is driven, and when “Low” is output, the driving of the motor 35 is stopped.
[0039]
The loading output unit 34 controls the driving direction when the motor 35 is driven. Specifically, the loading output unit 34 is also controlled by the CPU 14 via the I / O port 16 and outputs an output signal of “Hi” or “Low” level to the motor 35. When the loading output unit 34 outputs “Hi”, the driving direction of the motor 35 becomes the ejection direction, while when “Low” is outputted, the driving direction becomes the loading direction.
[0040]
The motor 35 is controlled by the load mute output unit 33 and the loading output unit 34, and loads or ejects the disc 2 by driving a predetermined feed roller or the like.
[0041]
The key input unit 40 includes a reproduction key 41, a stop key 42, a disc ejection key 43, and the like. The reproduction key 41 or the like generates a signal according to a user's key operation, and supplies the generated signal to the CPU 14 via the I / O port 16.
[0042]
The operation of the disk reproducing apparatus 1 according to the embodiment of the present invention will be described below with reference to the drawings.
First, an initial eject process for moving the position of the slide bar 57 to the initial position will be described with reference to FIG. The slide bar 57 may be shifted to a position different from the initial position due to transportation or the like when the disc playback apparatus 1 is shipped. When the disc 2 is loaded in such a state that the slide bar 57 is displaced, the down switch 56 is pressed before the disc 2 reaches the turntable 55. Therefore, it is necessary to move the position of the slide bar 57 to the initial position.
[0043]
FIG. 5 is a flowchart for explaining the initial ejection processing. The initial eject process shown in FIG. 5 is started when the user first turns on the power after the AC power is supplied to the disc playback apparatus 1.
[0044]
First, the CPU 14 acquires the storage state of the disk from the sensor input unit 31 and the switch input unit 32 (step S11). That is, the CPU 14 acquires the storage state of the disk 2 in accordance with the input from the sensors 51 to 54 and the input from the down switch 56.
Then, the CPU 14 determines whether or not the disk 2 is stored in the disk reproducing device 1 (step S12).
[0045]
If the CPU 14 determines that the disk 2 is stored, the CPU 14 ends the initial ejection process. That is, if the disc 2 is stored in the disc playback apparatus 1, there is no need to move the position of the slide bar 57 to the initial position, and the stored disc 2 is ejected against the user's intention. Therefore, the initial eject process is terminated.
[0046]
On the other hand, when determining that the disk 2 is not stored, the CPU 14 drives the motor 35 in the eject direction (step S13). That is, the CPU 14 controls the load mute output unit 33 and the loading output unit 34 to drive the motor 35 in the eject direction. Specifically, the CPU 14 drives the motor 35 in the ejection direction by setting the output of the load mute output unit 33 to “Hi” and the output of the loading output unit 34 to “Hi”.
[0047]
The CPU 14 continues driving the motor 35 for a predetermined time (step S14). For example, the CPU 14 continues driving the motor 35 in the ejection direction for 3 seconds. Thus, by driving the motor 35 in the eject direction for a predetermined time, even if the position of the slide bar 57 is shifted, it can be moved to the initial position.
[0048]
CPU14 stops the drive of the motor 35, after predetermined time progress (step S15). That is, the CPU 14 sets the output of the load mute output unit 33 to “Low” and stops driving the motor 35.
[0049]
Thus, even if the slide bar 57 is displaced by the initial ejection process, it can be returned to the initial position. Then, when the disk 2 is loaded by a loading process described later, the slide bar 57 accurately presses the down switch. As a result, the disc 2 is not caught in the insertion slot, so that the disc 2 can be safely loaded.
[0050]
Next, a loading process performed by the disc reproducing apparatus 1 will be described with reference to FIG. FIG. 6 is a flowchart for explaining a loading process for loading the disk 2 and chucking it on the turntable 55. The loading process shown in FIG. 6 starts after the above-described initial eject process is executed.
[0051]
First, the CPU 14 waits for processing until the sensor 51 is turned on (step S21). That is, the CPU 14 waits for processing until the sensor 51, which is a loading start detection sensor, detects that the disk 2 has been inserted into the insertion slot by the user via the sensor input unit 31.
[0052]
When determining that the sensor 51 is turned on, the CPU 14 sets an error timer (step S22). That is, the CPU 14 sets a predetermined time in a timer unit (not shown) for detecting an operation error of the disk carry-in mechanism.
[0053]
The CPU 14 drives the motor 35 in the loading direction (step S23). That is, the CPU 14 drives the motor 35 in the loading direction by setting the output of the load mute output unit 33 to “Hi” and the output of the loading output unit 34 to “Low”.
[0054]
The CPU 14 determines whether or not the down switch 56 is turned on (step S24). That is, the CPU 14 determines whether or not the down switch 56 is pressed by the slide movement of the slide bar 57 synchronized with the driving of the motor 35 via the switch input unit 32.
[0055]
When determining that the down switch 56 is not ON, the CPU 14 determines whether or not the error timer set in step S22 has expired (step S25).
[0056]
When determining that the time is not up, the CPU 14 returns the process to step S24 described above. On the other hand, when determining that the time is up, the CPU 14 stops the driving of the motor 35 (step S26). That is, the CPU 14 sets the output of the load mute output unit 33 to “Low” and stops driving the motor 35.
[0057]
When the drive of the motor 35 is stopped, the CPU 14 displays a predetermined error message or the like on the display unit 20 and abnormally ends the loading process.
[0058]
If it is determined in step S24 that the down switch 56 is ON, the CPU 14 stops driving the motor 35 (step S27). Then, when the down switch 56 is pressed by the slide bar 57, the disk lifting mechanism is activated to chuck the disk 2 on the turntable 55.
[0059]
The CPU 14 determines whether or not the sensor 51 is ON (step S28). The sensor 51 in this case is used to determine whether the loaded disc 2 is a 12 cm disc or an 8 cm disc.
[0060]
When determining that the sensor 51 is ON, the CPU 14 stores information indicating that the loaded disk 2 is a 12 cm disk in the RAM 11 (step S29).
[0061]
On the other hand, when determining that the sensor 51 is not ON, the CPU 14 stores information indicating that the loaded disk 2 is an 8 cm disk in the RAM 11 (step S30).
[0062]
Thus, the disk 2 is accurately loaded by the loading process. This is because the slide bar 57 is returned to the initial position in the above-described initial eject process. Therefore, the loading process can be safely loaded with the disk 2 in combination with the initial ejection process.
[0063]
Next, an ejection process performed by the disc playback apparatus 1 will be described with reference to FIG. FIG. 7 is a flowchart for explaining an ejection process for ejecting the disk 2 stored in the disk reproducing apparatus 1. The ejection process shown in FIG. 7 starts after the disk 2 is loaded by the loading process described above.
[0064]
First, the CPU 14 waits for processing until the disk ejection key 43 is pressed (step S31). That is, the CPU 14 waits for processing until a signal indicating that the disk ejection key 43 is pressed is input via the I / O port 16.
[0065]
When determining that the disk ejection key 43 has been pressed, the CPU 14 sets an error timer (step S32).
The CPU 14 drives the motor 35 in the eject direction (step S33). That is, the CPU 14 drives the motor 35 in the eject direction by setting the output of the load mute output unit 33 to “Hi” and setting the output of the loading output unit 34 to “Hi”.
[0066]
The CPU 14 determines whether or not the disc 2 to be ejected is a 12 cm disc (step S34). That is, the CPU 14 determines whether or not the information stored in the RAM 11 is a 12 cm disk.
When determining that the disk is a 12 cm disk, the CPU 14 determines whether or not the sensor 54 is turned off (step S35). That is, the CPU 14 determines whether or not the sensor 54, which is a 12 cm disc ejection stop position sensor, has detected completion of ejection of the disc 2.
[0067]
When determining that the sensor 54 is not OFF, the CPU 14 determines whether or not the error timer set in step S32 has expired (step S36). When determining that the time is not up, the CPU 14 returns the process to step S35 described above.
[0068]
If it is determined in step S34 that the disk is not a 12 cm disc, it is determined whether or not the sensors 52 and 53 are turned off (step S37). That is, the CPU 14 determines whether or not the sensors 52 and 53 which are 8 cm disc ejection stop position sensors have detected completion of ejection of the disc 2.
When determining that the sensors 52 and 53 are not OFF, the CPU 14 determines whether or not the error timer set in step S32 has expired (step S38). When determining that the time is not up, the CPU 14 returns the process to step S37 described above.
[0069]
If the CPU 14 determines in step S36 or step S38 that the time is up, the CPU 14 stops driving the motor 35 (step S39). That is, the CPU 14 sets the output of the load mute output unit 33 to “Low” and stops driving the motor 35.
When the drive of the motor 35 is stopped, the CPU 14 displays a predetermined error message or the like on the display unit 20 and abnormally ends the ejection process.
[0070]
If the CPU 14 determines in step S35 or step S37 that the sensor 54 or the sensors 52 and 53 are OFF, the CPU 14 stops driving the motor 35 (step S40).
In this way, the disc 2 is accurately ejected by the ejection process. As described above, the disc player according to the present invention can safely load a disc.
[0071]
In the above embodiment, the initial eject process is started when the user first turns on the power after the AC power is supplied to the disk reproducing apparatus 1, but the start timing of the initial eject process is arbitrary. For example, the initial ejection process may be started at the time of power-on / reset when AC power is supplied to the disk playback device 1.
[0072]
In the above embodiment, the slot-in type disk reproducing apparatus has been described. However, the present invention is not limited to such a slot-in type disk reproducing apparatus, and the disk reproducing apparatus performs loading by a carry-in mechanism and an elevating mechanism. It is also applicable to.
[0073]
In the above embodiment, the disc playback device for playing a CD has been described. However, the playback target medium is not limited to a CD, and a disc playback device for playing back an MD (mini disc), a DVD (digital video disc), or the like. Is applicable. Also, a playback device capable of playing back a medium such as SmartMedia (trademark) or Memory Stick (trademark) may be used.
[0074]
The disk reproducing apparatus of the present invention can be realized by using a normal computer system capable of reproducing a CD-ROM or the like without using a dedicated system. For example, by installing the program from a medium (floppy disk, CD-ROM, etc.) storing a program for executing any of the above in a computer, a disk playback device that executes the above-described processing can be configured. it can.
[0075]
The medium for supplying the program to the computer may be a communication medium (a medium that temporarily and fluidly holds the program, such as a communication line, a communication network, or a communication system). For example, the program may be posted on a bulletin board (BBS) of a communication network and distributed via the network.
Then, by starting this program and executing it in the same manner as other application programs under the control of the OS, the above-described processing can be executed.
[0076]
【The invention's effect】
As described above, according to the present invention, a disk can be safely loaded.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of an external appearance of a disk reproducing apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic view of a chassis on which main components of a disk reproducing device are arranged as viewed from above.
FIG. 3 is a schematic view of a part of a disk transport mechanism in the disk reproducing apparatus as viewed from the side.
FIG. 4 is a block diagram showing an example of the configuration of a disc playback apparatus according to an embodiment of the present invention.
FIG. 5 is a flowchart for explaining an initial eject process according to the embodiment of the present invention;
FIG. 6 is a flowchart for explaining loading processing according to the embodiment of the present invention;
FIG. 7 is a flowchart for explaining ejection processing according to the embodiment of the present invention;
FIGS. 8A and 8B are schematic diagrams for explaining a state of loading a disk of a conventional disk reproducing apparatus, in which FIG. 8A shows a loading start state and FIG. 8B shows a loading end state.
[Explanation of symbols]
1 Disc playback device 2 Disc 10 Microcomputer 11 RAM
12 ROM
13 Clock generator 14 CPU
DESCRIPTION OF SYMBOLS 15 Display drive part 16 I / O port 20 Display part 30 Disk drive part 31 Sensor input part 32 Switch input part 33 Load mute output part 34 Loading output part 35 Motor 40 Key input part 41 Play key 42 Stop key 43 Disc discharge key

Claims (5)

Conveying means for conveying the optical disk on the playback unit from the insertion opening, by the drop means for holding lowering the optical disk which has been conveyed by the conveying means to the reproducing unit, a reproducing apparatus for loading the optical disc,
A signal supply means for generating a signal instructing the start of the operation of the lowering means, and supplying the generated signal to the lowering means;
An actuating member which the synchronously moving the transport of by that the optical disk to the conveying means, actuating said signal supplying means,
Drive means for moving the actuating member to a predetermined initial position;
Control means for operating the driving means when the playback apparatus is turned on , and
The actuating member actuates the signal supplying means at a timing when the optical disk reaches the reproduction unit by the conveying means after being moved to an initial position by the driving means.
A reproducing apparatus characterized by that. Conveying means for conveying the optical disk on the turntable from the insertion opening, by the drop means for holding lowering the optical disk which has been conveyed by the conveying means to the turntable, a reproducing apparatus for loading the optical disc,
A switch for starting the operation of the lowering means;
A slide bar that slides in synchronism with the conveyance of the optical disk by the conveying means and depresses the switch;
Drive means for moving the slide bar to a predetermined initial position;
Control means for operating the driving means when the playback apparatus is turned on , and
After the slide bar has been moved to the initial position by the driving means, the switch is pressed at a timing when the optical disk reaches the turntable by the conveying means.
A reproducing apparatus characterized by that. The control means determines a state in which the optical disc is not stored in the playback device, and operates the driving means;
The reproducing apparatus according to claim 1 or 2, characterized in that A loading method for loading an optical disk by a transport mechanism that transports the optical disk from the insertion port onto the turntable and a lowering mechanism that lowers and holds the optical disk transported by the transport mechanism on the turntable,
An initial drive step of moving a slide bar that slides in synchronization with the conveyance of the optical disc by the conveyance mechanism to a predetermined initial position when the playback apparatus is powered on;
A transport step of transporting the inserted optical disc by controlling the transport mechanism after moving the slide bar to the initial position in the initial drive step;
In response to a switch signal pressed when the optical disk transported in the transport step reaches the turntable, a descent step for controlling the transport mechanism to lower the optical disk on the turntable;
A loading method comprising: A program for causing a computer to execute a loading method for loading an optical disk by a transport mechanism that transports the optical disk from the insertion port onto the turntable and a lowering mechanism that lowers and holds the optical disk transported by the transport mechanism on the turntable. A recorded recording medium,
An initial drive step for moving a slide bar that slides in synchronization with the conveyance of the optical disk by the conveyance mechanism when the playback device is turned on, and the slide bar is moved to the initial position in the initial drive step after is, the inserted optical disc, a transport step of transporting by controlling the conveyance mechanism, in response to the signal of the switch an optical disk which is conveyed by said conveying step is pressed in the timing has been reached on the turntable A computer-readable recording medium having recorded thereon a program for causing a computer to execute a loading method having a lowering step of lowering an optical disk on a turntable by controlling a transport mechanism .

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