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Q: Can mp3check scan whole directories for mp3 files and check/list/correct
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A: Of course. This is what I use most of the time:
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mp3check -re3GTo /space/mp3
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This will check all files with extension 'mp3' or 'MP3' (-3) recursively
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under directory '/space/mp3' for errors. The output will be colorized and
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ID3 tags and truncated last frames are ignored.
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Q: Can you add a feature to mp3check to add CRC to mp3 files which don not
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A: That's not possible, sorry. The CRC takes two bytes of extra space in every
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frame. One would have to re-encode each frame to make room for those two
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bytes which would result in loss of quality of course. But this is not what
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Q: I have an mp3 file which makes certain mp3 players (like xmms) crash, but
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mp3check does not find any errors in this file. Why is that?
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A: mp3check does only check the 'frame header' of each frame in the mp3 file
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for consistency. Additionally it checks the CRC checksum over the side
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information of each frame (which is only a small but important part of each
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frame). All other data is ignored, although also this data has an inner
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structure which can be corrupted in which case some mp3 players crash
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(although there is no excuse for such a behavior ;-) )
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Q: Why can't mp3check fix all those errors in my mp3 files?
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A: mp3check was never meant to fix anything. All those fixing options are
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useful by-products and are becoming more and more powerful, but mp3check is
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not meant as a tool to fix errors in mp3 in the first line, but to _check_
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Q: Could you add feature X and option Y to mp3check? It would be so useful!
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A: I am very busy and mp3check is only one of the tools I am maintaining. If
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you can report a bug, I would be happy to fix it. If is is a small, well
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defined feature you're requesting I will be happy to implement it. But I
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am even happier if you can send me a patch. ;-)
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Q: I am disappointed: About 0.1% to 10% of all mp3 files I downloaded from the
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internet had at least minor errors. How can this be?
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A: Ask me an easier question, please. It seems that hundreds of copying
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generations of a file through UDP connections (FTP), hard disks and local
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Ethernet cables leave their traces on the mp3 files. ;-) Use mp3check to
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filter the bad ones out and only use the good ones. That way we might get
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Q: I have files with the .wav filename extension but mp3checks claims they are
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mp3 files. And I have files with the .mp3 filename extension but mp3check
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claims that no mp3 streams. How can that be?
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A: A filename extension has not necessarily something to do with it contents.
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mp3check totally ignores the filename extension. I have seen mp3 streams
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encapsulated in a wav file and I have seen mp3 files containing a RealAudio
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stream. This shouldn't be a problem for the tools dealing with such files.
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Q: Can you send me a list of mp3 servers?
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A: What is that? I use mp3check only for my own recordings. ;-)
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Q: I looked at the source and it seems that tstring.* and tappconfig.* are
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pure overhead and that all the functionality of mp3check is implemented in
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FAQ
