MP3 Reverse Entropy (MRE) renames many audio files. However, it currently only supports ID3-MP3 tagging. This could be extended to support different formats (.mp3, .ogg, .spx, .mpc, .ape, .flac, .wv, .tta, .wma, .m4a/m4b/m4p/mp4/3g2, .wav, .aif) by switching from UltraID3Lib.dll to TagLib.dll. This is possible but takes a lot of work. I think this implementation is part of the future evolution of MRE but is possible to expedite it upon broad request. Let your voice be heard in the discussion forum!