>The software support went away, but also they stopped making drives
>(and controller chips) that can handle the 400K and 800K formats.
>Since they used variable motor speed on the 400K, 800K, and Superdrive
>(FDHD), they could keep a roughly constant flux density on the track.
>But when you try to read or write that on a fixed-speed drive, such
>as a 1440K drive in a PC, or any recent Mac floppy drive, the frequency
>required to match the flux density of 400K/800K disk format is outside
>the range that the drive electronics can reliably handle. Reading can
>sometimes be done, but writing is very problematic.
That probably explains why my 6500 and 9600 have problems with 800K disks.
-chris
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Received on Tue Oct 07 2003 - 08:59:28 BST