OPTICAL DISK, OPTICAL DISK RECORDING/REPRODUCING APPARATUS, AND RECORDING/REPRODUCING METHOD

摘要

A recording method of the invention is for time-division multiplexing and recording N channels of video data such as broadcasting onto an optical disk. In the method, a data compression ratio for video data on each channel is determined so that a total amount of data on N channels to be recorded in unit time is substantially constant regardless of the number (N) of channels. Then, the data is compressed at the compression ratio to be recorded. Alternately, in the method, the video data is recorded onto an optical disk by a method in which intervals of frames to be recorded is determined so that a total amount of data on the N channels to be recorded in a unit time becomes substantially constant regardless of the number of channels (N). Then, the frames on each channel are thinning out to cause intervals of the frame to become the determined intervals of frames, resulting in recording of the video data on each channel onto the optical disk. <IMAGE>