This is strange, I removed the folder for alpinerd, and now it works. I put the folder back in there, and it crashes again. None of the roms are marked read-only, there are 34 of them, totally 39mb.

Update:

When CLRMame scanned my zipped alpinerd set, it showed a file had a crc32 error. When I manually placed the new version of that file in the folder, and rescanned it, now it doesn't crash. Maybe it's having a problem checking to see if a crc32 is fixable when it's not in a zip?

Update 2:

Just happened again when it hit sfrushrk. Replaced the bad crc32 roms with good copies manually, and no crash. Definitely looks like bad crc32 roms are the key.

Alyas
"Good... Bad... I'm the guy with the gun."