Illustrated Media Format Guides

1/4" Akai

AKA
1/4" video, 1/4" open reel
Era
1967–late 1970s
Analog/digital
analog
Format
open reel
Developed by
Akai
(Max) Capacity
30 minutes
Size
5" reels
Fun facts
  • This format was initially only available in black-and-white, with color being introduced in 1974; color tapes were not backwards-compatible due to the systems running at different speeds
  • This format was typically stored on 5" reels but larger 10.5" reels were later introduced
  • This format was marketed for consumer use, intended for recording home movies