Roman,
I am using clrmamepro 3.114a for auditing my MAME 125 set that I got from retroroms. I use a logiqx dat. Windows XP SP2. I use full zip structure scan compressor option, all checksum options.

The issue I'm having is that some sets come up wrong crc32 or sha1 sometimes, other times they don't. The actual error msg is 'full archive integrity check reported errors, or a header crc32 mismatch was found.' What does that mean? I have read the documentation. Redownloading the entire set from pdome or retroroms, known reliable sources, do not correct the problem.

What am I missing? What factors can contribute to crc32/sha1 corruption or mismatch? Maybe I'm using clrmamepro wrong? I have been into roms and using your great program since 97 though. Any help would be reatly appreciated!