If all your ROMs are under one general 'ROM' directory on your hard drive, you are in in luck because QuickPlay now offers a way to scan in all these directories from one conveient screen.
All you need to supply is the path to the directory which contains all your ROMs, and then optionally associate an emulator with those folders, and QuickPlay will re-create that directory structure in its internal data files - complete with full ROM listings. Also if you provide an associated Emulator QuickPlay can set up Directory Mirroring, so you can rescan these folders with one click of a button.
The Directory Multi-Scanner will OVERWRITE any previous data that was in QuickPlay so be careful what folder you use it in!