Working on a Midway grid. Board is reporting bad checksums on some roms. The roms have checksums written on them (factory labels with handwritten info). Put a rom into my EMP20 (which I have never used for this size rom before) and then had it calc the checksum. Doesn't match the notation on the label. Loaded a mame rom set into the software and got a different checksum from both my rom and the file. Doing a file compare against the rom loaded into the buffer and the rom in the socket shows dramatic differences. I tried this with one of the roms that the board is reporting as good and got the same kind of results. So now I don't know what to trust. I wanted to calc the checksums of the mame rom images but can't figure out what tool to use (running windows here). Any help appreciated. David _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com http://seven.pairlist.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/