Is it possible to use a PianoDisc128 (diskette version) installed on a Charles Walter upright to record a piece to upload to the forums?

I'd like to participate the upcoming ABF recital, but my attempts at recording are pathetic.

The recording is lacking the pedal (a problem for Debussy). When I play it back, I get lots of thumping noises from the keys.

The diskette I'm recording on is formatted for the PianoDisc and not readible on a regular PC disk drive.

Ideas?
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If I had ever learnt, I should have been a great proficient.