Mp3Wrap is a free and independent alternative to AlbumWrap. It’s a command-line utility that quickly wraps two or more mp3 files into one single large playable mp3, without losing filenames and ID3 information (and without decoding or encoding). It’s also possible to include other non mp3 files, such as playlists, info files and cover images inside the new mp3. You can easily produce a large mp3 file that you can split at any time by using mp3splt and in few seconds you’ll have all the original files again! It’s useful because files created with Mp3Wrap are much easier to share.

Linux / Unix / Windows

mp3wrap.sourceforge.net
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