Re: MD: 80/160 minute MDs

[Timothy Stockman]

On 80 minute MDs, the pregroove spiral is "wound" tighter so that
the resulting groove is longer.  80 minute MDs will give 160 minutes
is mono or in LP2 and 320 minutes in LP4.  Mono discs with play in
vitually every MD player ever made.  LP2 (ATRAC3 stereo) and LP4
(ATRAC3 joint stereo) will only play in a handfull of new models.


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