I need to make a fixdat, and I'm told that I should use CMP to make one.

I have got the dat from the emulator, mame 0.36

That part is fine. My roms are not organised in the usual way which I think is confusing CMP.

My sets are fully-merged, and each rom is renamed to its CRC. This allows one set to work with many versions of mame, and many emulators.

Example: If I open backfire.zip, I have 2 roms: 27472F60 and 60973046.

The problem is, I don't know how to drive CMP to give me the result I need. How do I ask CMP for the list of missings, and how do I turn that list into a dat file?

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Robert