1-inch Type C Helical Scan or SMPTE C is a professional reel-to-reel analog recording helical scan videotape format co-developed by Ampex and Sony in 1976. The format uses 1-inch-wide tape and became
3⁄4-inch Type E Helical Scan or SMPTE E is an analog recording videocassette format marketed by Sony Electronics Corporation, Matsushita Electric Industrial Co. and Victor Co. of Japan. It was initial
Type C videotape
…did 2-inch machines. 1-inch Type C records composite video at a very high video quality that was superior to contemporary color-under formats such as U-matic, and of comparable quality to analog component video formats like Betacam and MII. Both analog component formats were notoriously fussy and trouble-prone…
Sony U-matic cassette
U-matic (back row, left) compared to Video8 (center) small Betacam tape (back, right), VHS (front, left) and MII (front, right)