Tag Archives: Amiga

Commodore Amiga

CD-MIDI on Amiga CD³² – MIDI Out + Keyboard Adapter

While the Amiga CD³² can play CD-MIDI discs, it lacks a MIDI out port to hand over the data to a MIDI playback device. I’m going to build an adapter with a keyboard pass-through for its AUX port.

CD-MIDI (or CD+MIDI) is an extension of the Red Book Audio CD that allows MIDI data to be stored in the subcode channels, just like CD+G and CD-Text does it with graphics and text data. Only very few devices are known to be able to make use of that information: CD³², CDTV and WonderMega. Even though the Green Book describes a MIDI extension, the Philips CD-i is not among these devices, and so far, no CD-i hardware or software that made use of MIDI has surfaced.

Compact Disc Digital Audio +Graphics +MIDI
Compact Disc Digital Audio +Graphics +MIDI
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Amiga CD³² Recap and TF328

This repair was not planned at all and took place while I was waiting for the capacitors for my CDI350 to arrive. I was thinking about buying a SX-1 or SX-32 extension for my Amiga CD³², and was recommended to go for a much cheaper modern extension: the TF328.

The TF328 needs a Kickstart 3.1 rev 40.60 to access the CF card, as there is no IDE driver in the earlier revision 40.56. Upon checking my CD³², there was not only the smell of electrolyte, there was also visible damage caused by leaking capacitors.

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