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  1. I didn't try to follow the conversation regarding parent and clones with different names. However, if your files are loose in a folder of the game name, mame can only check by filename - it doesn't have an inbuilt crc generator. If your files are compressed with zip or 7z, mame will enquire in the file's header as to the crc values, and grab the first one that matches - even if it's the wrong one. Then it will compare that file size, sha1 and crc to what is in the rom definitions. If there's something wrong it will complain. You can do some overriding by using a wanted filename, even if the crc doesn't match. CHDs by tradition are not included in the compressed file, so therefore MAME will only look by filename. Once found, it will look at the internal sha1 which is stored in the chd header, and match that with the rom definition. In the end though, MAME does what it wants, and CMPRO does what it wants. They are not made for each other. There's plenty of other rom managers out there, and many of them are easier to use.
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