ROMBrowser is a Java tool for organizing emulator
ROMs. It will identify rom files by their CRC,
give information about their characteristics (game
title, parent rom, etc), and organize those ROMs
with different filters.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
Lots of functionality (still only handles NES romfiles): auto-renaming of files, file data caching, auto-deletion of duplicate files, and a new rombrowser.prefs file to turn on auto-renaming and deletion.