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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: freqmax on May 12, 2011, 09:37:51 PM

Title: Deteriorating floppies recovery methods?
Post by: freqmax on May 12, 2011, 09:37:51 PM

Those of you that has recovered deteriorating floppies. What kind of encoding violations do they produce and what mitigation have you used to get a working image file?

One can connect directly to the read head to sample the analog waveform for that extra in-depth capability.

Title: Re: Deteriorating floppies recovery methods?
Post by: Plus4 on May 12, 2011, 09:44:48 PM

Viagra?

Title: Re: Deteriorating floppies recovery methods?
Post by: CdreCommodore on May 12, 2011, 09:50:31 PM

A bit dated, but relevant to your question.

http://techtravels.org/amiga/amigablog/

Title: Re: Deteriorating floppies recovery methods?
Post by: freqmax on May 13, 2011, 05:44:26 PM

Found this:
http://info-coach.fr/atari/hardware/FD-Hard.php

The waveforms of wrecked analog pulses could be used as basis for an head -> A/D -> decoder. This should be able to handle bit-smear and AGC mismatches.