The rebuilder is an engine which is usually used to
a) convert a mess/unknown collection into something useful
b) add files to an existing collection

The rebuilder simply takes any sourcefile, tries to match the hashvalues against the database, and in case of a match, it creates the file in the destination but with the correct name. It creates all found instances there. So if a file is shared by 10 sets, all 10 sets are created with that one rom. You see it's a file based not set based operation. It doesn't care about completeness of sets.

So for the usual operations a), you can "convert" your e.g. MAME roms to another emulator where you loaded a datfile for. In case of b), you can let the rebuilder destination point to your clean collection and your source files are being added to that collection.




Roman Scherzer