Method and apparatus for editing in a forward or reverse direction on a rewriteable disc media
View Patent ↗Method and apparatus for editing a recorded series of bits on a rewritable disc media. The method includes the steps of selectively identifying a beginning point and an end point of a segment of the recorded series of bits to be deleted; and modifying a first jump command in a control data portion of the disc. The first jump command is modified for causing playback from the disc to continue at the end point when reading in a forward direction. The method can further include modifying a second jump command in a control date portion of the disc for causing playback from the disc to continue at the beginning point when reading data for playback in a reverse direction.
1. A method for editing a portion of a program recorded on a digital storage medium comprising the steps of:
providing at least one user-selectable program editing command;
defining a portion of said recorded program to be edited by providing a portion start address corresponding to a first location on said storage medium and providing a portion end address corresponding to a second location on said storage medium;
upon user selection of at least one user-selectable program editing command, modifying at least one address of Video Title Set Information (VTSI) for said recorded program based upon at least said first location on said disk;
controlling playback of said program in accordance with the modified VTSI to carry out the user-selected editing command.
2. The method of claim 1 wherein said user-selectable program editing commands are provided via a menu and are displayed to the user on a display means.
3. The method of claim 1 wherein said user selectable editing commands are selected from the group comprising: edit, delete, undelete, copy.
4. The method of claim 1 wherein said portion start and end addresses are selected from the group comprising: a VOBU start address, and a disc sector number.
5. The method of claim 1 wherein the step of modifying Video Title Set Information (VTSI) comprises a step of modifying at least one cell start address based upon said location.
6. The method of claim 1 further comprising the steps of, when both said start address and said end address correspond to locations within a single cell,
dividing said single cell into first, second and third cell portions;
providing said first cell portion with an end address corresponding to said start to create a first new cell;
providing said third cell portion with a start address corresponding to said end address to create a second new cell;
carrying out said user selected editing command upon said second cell portion.
7. An apparatus for editing a program recorded on a digital recording medium comprising:
a menu comprising user selectable editing commands;
a user operable control for providing edit commands to a processing unit;
means for providing a start address and an end address corresponding to a program portion to be edited;
means for modifying video title set information based upon said start address and end address such that at least one editing command is carried out.
8. The apparatus of claim 7 further comprising:
means for portioning an existing call into first, second and third call portions;
said second cell portion comprising said program portion to be edited;
means for providing a first new cell from said first cell portion based upon said start address;
means for providing a third new cell from said third cell portion based upon said end address;
such that said apparatus plays back said program in accordance with a user selected editing command.