Illustrated Media Format Guides

MII

AKA
M2
Era
1986–1990s
Analog/digital
analog
Format
Cassette
Developed by
Panasonic
(Max) Capacity
Small: 20 minutes Standard: 90 minutes
Size
Small: 13 × 8.7 × 2.5 cm Standard: 18.7 × 10.6 × 2.5 cm
Fun facts
  • This format was an enhanced version of its predecessor, the failed M format; while the cassettes were similar, they used different magnetic tape formulas and signal processing methods
  • This format was developed to compete with Sony's Betacam SP format; while it gained some popularity, it largely lost out due to lack of reliable, affordable repair support
  • The M and MII formats, like the U in U-matic and the B in Beta, were named after the M-shape of the tape threading through a playback device (and VHS used this same technique)