CAV

Constant Angular Velocity playback in magnetic and laser discs where the disc rotates at a constant speed. Relative to CLV variable speeds, the CAV approach results in varying data retrieval times that depend upon where the read/write head is located relative to the disc spindle. Authors of CAV disc products try to locate commonly accessed files closer to spindle. In videodiscs, CAV discs hold only 30 minutes of video on each side of a 12-inch disc. However, CAV facilitates searching for individual frames. (See also CLV )