| 摘要 |
A DVD player performs processing which, when subpicture settings, audio settings, or angle settings cannot be changed, determines whether the switching operation is impossible due to a lack of data recorded on a DVD, or is prohibited by a title producer or due to player specifications. When a user-designated operation cannot be executed, the DVD player displays a message indicating that the operation is prohibited by the title producer or due to the player specifications. When the operation is impossible due to a lack of data corresponding to the operation, the DVD player displays a message indicating that the operation is impossible due to the lack of the corresponding data.
|
