File and MP3 Renamer is the complete file renaming solution. Rename a single file or work in batch mode for nearly unlimited file operations. There's support for changing between upper and lower case, global find and replace, folder renaming, MP3 tag editing, and sequential numbering. Quickly and safely trim long file names down to a uniform size, change batches of filename extensions with one click, work with digital camera meta tags, or dig into the advanced features like custom filters and advanced renaming formats, for those specialized file renaming jobs. Skinnable File and MP3 Renamer is easy enough for first-timers and powerful enough for a pro.
Version 5.25 is now freeware.