KR100300976B1 - Disk for writing basic development information and regeneration method thereof - Google Patents

Abstract

PURPOSE: A disk for writing basic development information and a regeneration method using the information are provided to avoid logical regeneration impossibility and to realize simple regeneration by using basic development information even if development by navigation fails. CONSTITUTION: A regeneration method of a disk comprises the steps of setting up a regeneration mode(S1), deciding the occurrence of an error while A/V(Audio and Video) data written on a disk are regenerated(S2), temporarily storing error position information in such a memory as an internal RAM(Random Access Memory) in a DVD(Digital Versatile Disk) player after retrying regeneration for several times(S3), deciding if regeneration in the basic development order by basic development information is needed(S4), reading out the basic development information from the disk if regeneration in the basic development order is selected(S5), regenerating the disk in the basic development order(S6), moving to a former navigation position if regeneration in the basic development order is not selected(S7), inputting a power off key or an ejection key(S8), and writing the error position information on the disk(S9).

Description

Disc on which basic development information is recorded and a playback method using this information

TECHNICAL FIELD The present invention relates to the field of optical discs, and more particularly, to a disc on which basic development information is recorded and a reproduction method using this information.

According to the general DVD (Digital Versatile Disc) -VIDEO format, various menu items, information, and navigation data structures are defined to enable the disc's attribute reading and random access. The video and audio contents stored in such a DVD disc can be developed according to the user's choice when navigation data is displayed on the screen.

Referring to Fig. 1, a conventional reproduction method using conventional navigation data is described. First, contents A, B, and C stored on a disk are developed. When the user reaches the position C where the navigation data exists, the user selects the route 1 or the route 2 according to the route menu according to the navigation data displayed on the screen. If path 1 is selected, it develops in the order of the contents of D, E, F, G, H, I, J, K. If path 2 is selected, it develops in the order of the contents of L, M, N, and O. Here, A, B, C, ..., N, 0 are classified according to the content of video data stored on the disc.

However, it is impossible to logically reproduce the contents development when information loss on the disk in which the navigation data exists at any of several points occurs. That is, there is a problem that the DVD recorder cannot enter the logical error situation in which the contents can be changed by the user, and the system stops due to a logical error situation in which the contents cannot be developed anymore.

In order to solve the above problems, it is an object of the present invention to provide a disc on which basic development information is recorded so that the development continues even if an error occurs.

Another object of the present invention is to provide a reproducing method capable of simple reproducing and preventing a logical reproducible state by using basic deployment information even if the evolving by navigation is not made due to an error.

In order to achieve the above object, a disc according to the present invention is a disc in which navigation data for controlling the development order of audio and video (A / V) data and A / V data is recorded, whereby reproduction of A / V data is performed. Basic deployment information is recorded so that the deployment continues even if an error occurs.

In order to achieve the above another object, the reproduction method according to the present invention is a method for reproducing audio and video (A / V) data recorded on a disc, wherein the error occurs in the A / V data in the reproduction mode. Judging and reproducing in an order according to the basic development information recorded on the disc if an error occurs.

1 is a view for explaining a content development procedure using general navigation data.

2 is a diagram illustrating an example of a basic deployment order according to basic deployment information proposed by the present invention.

3 is a flowchart according to an embodiment of a reproduction method using basic development information according to the present invention.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a disc on which basic development information according to the present invention is recorded and a reproduction method using this information will be described.

The basic deployment information proposed by the present invention may include a basic deployment order and a number of retries in case of an error, and the basic deployment information is recorded in a file. Here, the DVD disc is in a predetermined file system format, and the basic structure of the file system is volume information, file position information, and file data. Therefore, the basic development information proposed in the present invention is recorded on the disk as file data.

In addition, the number of retries in an error can be selectively applied by using a default value specified by the DVD recorder system and using a value stored on the disc by the manufacturer.

Assuming that data having a sequence of contents development as shown in FIG. 1 is stored on the disk, navigation cannot be performed if an error occurs at point C while playing in the order of A, B, and C. FIG. At this time, in the present invention, after retrying according to the number of retries using the basic development information recorded on the disc, if it is impossible, playback is performed in the basic development order of L.M.N.O as shown in FIG. Here, the basic deployment information may be changed and reconfigured, and the basic deployment information may include at least one basic deployment order.

3 is a flowchart according to an embodiment of a reproducing method using basic development information according to the present invention. When a reproducing mode is set (step S1), it is determined whether an error occurs while reproducing A / V data recorded on a disc. (Step S2). If no error occurs, the process proceeds to step S6 to continue the playback operation.

If an error occurs in step S2, playback will be retried as many times as the retries included in the basic deployment information. If an error occurs even after retrying this number of times, the error location information will be stored in the same memory as the internal RAM of the DVD player. Temporarily store in step S3.

After proceeding to step S3 it is determined whether to play in the basic deployment order according to the basic deployment information (step S4). In this step S4, a menu may be provided for the user to select whether to play in the basic deployment order when an error occurs or to retry playback by moving to the previously played navigation position.

If playback is selected in the basic development order according to the basic development information in step S4, the basic development information recorded on the disc is read out (step S5), and playback is performed in the basic development order according to the read basic development information (step S6). If the playback according to the basic development order is not selected in step S4, the mobile device moves to the previous navigation position (step S7) and proceeds to step S2 to determine whether an error occurs.

On the other hand, if the eject key or the power-off key for ejecting the disk is input during playback in step S6 (step S8), an error occurs by recording the error location information temporarily stored in the memory as a file on the disk in step S3. When the disc is inserted and played again, or when the player is powered on, the user can be notified.

As described above, the present invention does not become a logical undeployable state unless basic deployment information is lost, so that the contents stored in the disk can be viewed to the end. In addition, the present invention has the effect of preventing the logical reproducibility state using the basic deployment information and simply reproducing even if the development is not performed by the navigation due to an error.

Claims (9)

A disk on which audio and video (A / V) data and navigation data for controlling the development order of the A / V data are recorded: And basic deployment information is recorded so that the development continues even when a reproduction error of the A / V data occurs. 2. The disc of claim 1, wherein the basic deployment information is recorded in a file. The disk of claim 1, wherein the basic deployment information includes at least one basic deployment sequence and a number of retries in error. In a method of playing back audio and video (A / V) data recorded on a disc: (a) determining whether an error occurs in the A / V data in a reproduction mode; And (b) if the error has occurred, reproducing in the order according to the basic development information recorded on the disc. The method of claim 4, further comprising the step (c) of recording the information on the position where the error occurred when the one of the power off key or the eject key is input while the step (b) is input, and ending the playback. How to play. 5. The method of claim 4, wherein the basic deployment information includes at least one basic deployment sequence and a number of retries in error. A method for reproducing the A / V data on a disc on which navigation information for controlling the development order of audio and video (A / V) data is recorded: (a) determining whether an error occurs in the A / V data in a reproduction mode; (b) temporarily storing the location information where the error occurred if the error occurred; (c) determining whether to play the A / V data in the order according to the basic development information recorded on the disc; (d) reproducing the A / V data in the order according to basic deployment information according to the result determined in step (c); And (e) recording of the error position information and ending playback when any one of a power off key or an eject key is input; 8. The reproduction method according to claim 7, further comprising the step (f) of moving back to the previous playback position according to the result determined in the step (c) and feeding back to the step (a). 8. The reproduction method according to claim 7, wherein the basic deployment information includes at least one basic deployment sequence and a number of retries in error.