... forms: 1 Pre-recorded 2 Blank and recordable A pre-recorded Minidisk is exactly like a CD, except smaller. A CD holds about five times more data (650 megabytes in data mode and 740 megabytes in audio mode) than a Minidisk. However, both CDs and Minidisks can store the same amount of music (75 minutes or so). The difference is that a Minidisk uses a digital compression technique called ATRAC (Adaptive Transform Acoustic Coding) when storing music. A recordable Minidisk is a magneto-optical device capable of storing 140 megabytes of information. Music can be scattered all over the disk and the player can "put it together" correctly when playing the disk. This means that you can erase and re-record songs on a Minidisk without having to worry about how they fit together. This is tremendously convenient compared to a cassette tape, where you have to basically re-record the entire tape if you ...

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