OK, I see. I did not try to save a .raw file with no other files in the /PROG directory. I did copy the one .raw file that I had saved on my PC to the /PROG directory, and then attempted to save a .raw file to the FAT from my DM41X, which resulted in the NAME ERR. I'm going to try to recreate your situation by deleting all saved files and and then trying to save one again. Stand by....Peet wrote: ↑Tue Oct 13, 2020 6:32 pmThe NAME ERR did not occurred after reformating with no files on the disk and saving the first file, the raw was OK. After copying about 20 raw from the PC to the 41x the error occurs both when overwriting a file and when entering a new name - tried differend Names "abc" "x" even "123" always a zero-byte raw with this name. Copying from the PC to the 41x is OK, the 41x can read the RAWs but not "resave" them.HPMike wrote: ↑Tue Oct 13, 2020 6:16 pmDo you mean that you copied your programs from your PC/MAC to your DM41X FAT drive, loaded them into your DM41X memory, and then tried to resave them with the same name when the NAME ERR occurred ?
Not only can't I resave any files, when I create a new program and attempt to save it, I get the same error and zero byte file.
Nope, same problem, even with an empty directory.
So, maybe, once any modification is made the the contents of the FAT drive after a fresh format, something gets corrupted to the point that you can't save any raw files without an error occurring. This has to be a problem with firmware, methinks.