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DAT tapes are between 15 and 180 minutes in length, a 120 minute tape being 60 meters in length.
DAT was not the first digital audio tape; pulse-code modulation (PCM) was used in Japan to produce analog phonograph records in the early 1970s, using a videotape recorder for its transport, but this was not developed into a consumer product.
Modern DAT has not been very popular outside of professional and semi-professional music artists, although the prospect of perfect digital copies of copyrighted material was sufficient for the music industry in the US to force the passage of the Audio Home Recording Act of 1992, the so-called DAT Tax.
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