I have 2 file structures of music on network drives. One is a mix of .flac and .mp3 files. The other is a mirrored image of the first with all mp3s. The all mp3 library is missing some songs. I need an app that will compare both file structures and tell me what's missing. The key here is i need a file NAME comparison w/o just finding duplicate files. (since the first library has different files thant he 2nd but the file names are similar). Any suggestions?