Anthony,

Thanks for the response. I had a PR 702 prior to my PR 804 and files it created work fine. The ones I am having trouble with include Technics Music Disk Collections which state they are compatible with PR500, PR51, 52, 53, PR600,602,603, etc. They clearly originated prior to the 02 series. Many Technote style and registration discs have the same problem.

My hope was that someone would know the specifics of what changes in the format when a disc is created with the newer instruments and that it could be done with file editing in the computer rather than the tedious process of loading and saving each file from each floppy in the piano.

Still hoping.

Lanny