Corporate Systems Center (CSC) was a valueadded reseller founded in the 1980s specializing in storage solutions: Hard drives, floppy disk drives, WORM and CDROM drives, etc. They focused on highend storage such as caching SCSI controllers. This VHS tape was a promotional advertisement for CSC.

Despite being promotional in nature, it contains some good background information on how hard drives work, and has nice footage of hard drives operating.