I had been looking for a while for a reliable way of merging MP3 files together, and had tried mp3wrap but never been very happy with the results (because of an audible gap between each merged file, and the fact that the resulting files seemed to be incompatible with some players).

But I have recently realised what a pointless exercise this was, as you can just cat them together:

cat file1.mp3 file2.mp3 file3.mpg > output.mp3

I need this to stick together individual tracks of an audiobook CD (typically 5 minutes long), into one long file. I also reencode the output to a lower bit rate (64k) with lame, like this:

cat infile*.mp3 | lame -b 64 -h –mp3input – outfile.mp3

There’s an lame Intel binary on the download page if you need one.

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