Thanks for the information, I understand. Unfortunately it seems as though Wavelab wants to see a letter not a number in the 5th spot - if I’m reading the error message right.
The message you get might be a bit misleading, but WaveLab 7 accepts a digit at 5th position. What code do you try to type, and where exactly in WaveLab?
While I have the montage open, Specific tools>CD. Typing “QM-RW4-11-0001” into ISRC box. It enters fine, but when I try to verify the cd I receive the error.