Guillotine is a drop box that “decapitates” those ugly all caps DOS-like filenames. Just drop the offending files/folders on it, and the names will become all lowercase. Guillotine processes the complete contents of dropped folders. Note: you will have to close and reopen the folder for the new name(s) to appear in the finder.
Requirements
Guillotine requires System 7 or later. It is a fat binary for optimal performance on PowerMacintoshes and 68K Macs. My goal is to make Guillotine support as many setups as possible, so if it doesn’t work on your Mac, let me know!