I use QuickPlay frontend, which supports 7zip sets. That is, i archive all [U], [J], and other releases into one archive to save space, and QuickPlay lets me navigate them.

However, i want to check the roms i have with a .DAT file, and while ClrMAME supports 7zip, i gather, it only sees one rom inside the "set archive", for example [U], and the [J] and [E] become "missing".

Is it possible for me to scan everything, somehow, without unpacking all the roms ?