This may be more information than anyone cares about but here are some of my findings concerning the Technics files and compatibility.

Each file contains a header and each header has information that identifies the model.

That information (ID) for the models I’ve looked at so far (and I’ll use the ascii or letter and not HEX and _ = a space) is:

KN6000 = I_K
KN7000 = J_K
PR54 = R54
PR804 = R_H

The PR54 and KN7000 files are almost identical except for this header information and the PR804 and KN6000 are more alike.

The hard part of this is one, the order of ID is not always the same. For example sometimes it’s J_K and other times its JK_. R54 seems consistent.

Two the placement of this information is slightly different in the different models. While each file starts with the ID it also is used at other places in the beginning of the file. I’ve also found that on the PR54 model, if a song name is used it adds an additional ID at the end of it.

I have a program that successfully replaces the information in the PR54 files and allows it to load and play on the KN7000. It seemed to work fine until I added song names. Then for some reason only one of three files I sent as a test to someone loaded and played.

It would be most helpful if anyone can add to this information or has data about the file formats however, I realize that this information may be proprietary and therefore not available to the public.

I am continuing to work on this project as I have the time.

Heather