QUOTE(odyssey @ Jul 6 2007, 08:48)

How do I add ID3 (or convert from whatever standard foobar2000 uses) tags to a Nero encoded mp4 file?
Edit: Commandline util preffered. I tried tag.exe but it just complained about the fileformat although the manual mentions aac - Maybe I need to strip the mp4 container for tag.exe to work? This format is killing me!!!
Assuming there's a good reason for wanting ID3 tags on an MP4 file (such as putting on the Nokia 3250 phone which uses such that setup), you could try renaming the file to .mp3, run it through a tagging program, and then rename it back to .mp4/.m4a
Generally speaking, you don't want ID3 tags on an MP4 file, though

There's a different tagging scheme altogether.