Does anyone have any Yamaha RY-30 compatible waveform cards? Compatibles are RY-30, RM-50, SY/TG 55 and 77, and there were some data tapes: RY-30 London Dance Collection; and one by Dave Garibaldi. I have the 'Matt Sorum' card. I think it's possible to load the info from these cards into the RY-30 and then back out to standard cassette tape. If it works, we can all keep our cards and just share the cassettes.