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I am currently using Windows, and I have ordered all my library. But when I do a back-up and I copy all these files to another computer, running Windows too, there are always some files where the metadata such as song name, track number, or album title are wrong or disappear.

Also, it happens when I run Ubuntu with other media players, so I suppose it's not Windows' fault and it happens with other operating systems even on the same machine.

So, my question is: What could I do to make the metadata permanent on all of my songs so I would not need to fix them again? Could iTunes update some kind of information other than the ID3 tags, and could this cause these mistakes in the songs' metadata?

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2 Answers 2

I doubt iTunes is directly involved. iTunes edits your metadata when you tell it to do so by using the built-in id3 tagger or the fetch cover function. iTunes updates other information like playcounts or ratings in a separate database file that doesn't affect songs metadata.

I suggest the next time you see a such badly tagged mp3, you investigate using an id3 editor (eg Tag and Rename) :

  • are the ID3v1 tags synchronized with the ID3v2 tags ?
  • if ID3v2 are present, which version is it? 2.2? 2.3? 2.4?
  • try to spot oddities that could confuse players : many covers embedded, huge size of the comment field, etc

So I suggest that it's one of those corner case that iTunes happen to process well and not your other player. But to answer more directly to your question, if you think that some process has altered your metadata, you can set the files as read-only to prevent any modification.

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Ok, I will check out the id3 editor and I will see if this correct the issue. It's very annoying because I think I could import the .xml library file and it automatically would fix the problem, but no worked... Thanks! –  albertoblaz Aug 11 '11 at 17:27

Just a guess, but are there m3u files involved? I had this problem years ago, when importing Albums from WinAmp with m3u files. The information is stored in those files rather than the id3 tag. Quite annoying.

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