Steinberg Pro-16 sequencer
Steinberg sent me a package with the manuals and the original disks of the Pro-16 sequencer software (the plus version with addtional "graphic editor" aka track editor). I scanned and OCR'ed the manuals (for full text search), copied the disks with KryoFlux, and prepared a PRG file which will be used for the cartridge. Already tested with the new CPLD version of the cartridge and works like a charm. Steinberg gave me the permission to release it independently from the cartridge as well, see http://csdb.dk/release/?id=131003&show=notes#notes for the full package.