Just had that problem for the first time. Had a 7M3 set, played fine on the HiMD. Went to transfer with SS4, couldn't complete due to write errors. Annoying, but I figured what the hell, I'll just do it analog line-in. Discover that when SS4 couldn't transfer the file, it
formatted the disc, so I got nothin'.
I guess it figures if it can't transfer it, then you don't need it