> I just downloaded some CHDs and i can't rebuild them as i do with roms

Of course you can't. The rebuilder is crc32+size based. CHDs don't use CRC32 checksums or size entries.


> nor check them with the scanner (i have the box "diskimage" checked). My CHDs seems
> correct though. Can you tell me how you do with CHDs please ? (with the scanner?

Enabling the diskimage option in the scanner is enough. Diskimages can be checked for: name, case, unneeded, checksum->chd_sha1/md5, checksum->full intergrity chd check (or whatever I called them).


Roman Scherzer
ClrMamePro