RomVault is a Rom Manager for your roms. It is a very good alternative to CLR MAME Pro. It can do some nifty things. Here is a quote from the Author:
Just added a quick bugfix update (1.5.1):
Corrupt zips are now correctly moved out to the ToSort/Corrupt directory.
The zip scanning code now cleanly handels zip files that are open by another application and just marks them as unknown status.
Fixed the MESS XML Dat reader to load the latest NES dat (size no longer needs to be suppied if the status=”nodump”).
Link to Source & Download: Here