Abstract
A phase change drive with both-sided head have been developed for use in a video server for small-scale near-video-on-demand systems. To increase the data-transfer rate, we developed dualaccess heads that enable us to read and write the data on both sides of a disk alternately. The drive shows no critical mechanical interference between the two heads and achieves 1.8 times higher transfer rate than that of a single head. A prototype video server system built using this drive is capable of distributing MPEG1 compressed images to 8 terminals simultaneously.
