I've only dumped N64 cartridges so far. I spent the better part of today dumping my 73 N64 games. Most dumped fine, a few had CRC errors but after cleaning and adjusting they dumped fine. At the end of the day, I had 3 games that failed the CRC checks. I've tried cleaning and adjusting and dumping each of them about 5 times and it fails every time. The games are Glover, Golden Nugget 64, and Pokemon Stadium if that matters. I don't know what else to do, the pins look super clean and they play in an N64 without problem.