Before revision: Description The system was an R-DAT based system which stored memos using helical scan on special microcassettes, which were 30 × 21.5 × 5 mm with a tape width of 2.5 mm, with a recording capacity of up to 120 minutes similar to Digital Audio Tape.
After revision: mmmmDescription The system was an R-DAT based system which stored memos using helical scan on special microcassettes, which were 30 × 21.5 × 5 mm with a tape width of 2.5 mm, with a recording capacity of up to 120 minutes similar to Digital Audio Tape.