> How comes that unneeded CHDs are discovered by ROM checks?

Because they are stored like roms, unpacked romsets use rompath\setname\file 1..file n storing method and so cmpro's rom-unneeded check finds the susume.chd (since cmpro supports zipped and unzipped sets). So for cmpro, it's basically an unneeded rom (of course additional checks see that it's not a valid chd anymore) because it's stored in a romfolder-subfolder for the unpacked susume set and doesn't match (checksum check) any belongin romfile.

Not all check options work with all 'you want to scan' options by the way...iirc diskimages only support missing, name, case and checksum chds...guess there is no unneeded test for diskimages (since they would likely pickup unzipped roms as unneeded) ;)


Roman Scherzer