Abstract: Original video data of a first format is edited. The first format video data has jitter frames (626) inserted therein and is displayed at a first frame rate. The original video data is read from a video tape recorder (301) in the first format and converted into a second format with no jitter frames, displayable at a second display rate. Time-code of the converted video data is related to time-code of the original video data so as to identify frame types for the converted video data. A portion (603-606) of the converted video data is modified to produce modified video data in the second format. New video data is generated in the first format by processing the modified video data. An edit processor is configured to replace an edit portion of the stored original data with the new data by defining an edit range with reference to the new data, selecting an edit field with reference to the frame type so as to initiate an edit on a data boundary.

Abstract: A method of viewing a clip of image data stored (109) remotely on a network (106). The viewing is performed by an image processing station (101) connected to the network. Frames of a clip are prefetched (701) and certain of the frames in a frame sequence are skipped, in alternation with frames that are fetched. Frames are skipped to compensate for network conditions. Display (702) of the prefetched frames is performed by selecting (1001) a prefetched frame for display appropriate to the elapsed real time since playback started. The clip is viewed in real time, even though the network (106) does not necessarily support the data transfer rate required for full playback of the clip.

Abstract: Original video data is a first format is edited. The first format video data has jitter frames (626) inserted therein and is displayed at a first frame rate. The original video data is read from a video tape recorder (301) in the first format and converted into a second format with no jitter frames, displayable at a second display rate. Time-code of the converted video data is related to time-code of the original video data so as to identify frame types for the converted video data. A portion (603-606) of the converted video data is modified to produce modified video data in the second format. New video data is generated in the first format by processing the modified video data. An edit processor is configured to replace an edit portion of the stored original data with the new data by defining an edit range with reference to the new data, selecting an edit field with reference to the frame type so as to initiate an edit on a data boundary.