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Re-ripping CDs to new formats in iTunes Apps
If you want to rip a CD in AAC format, but have already ripped it in MP3 format, insert the CD in your Mac and click Import in iTunes 4. It will tell you that some songs are already in the library, and will give an option to replace them. Go ahead and replace them. iTunes will automatically delete the old songs and replace them with the new versions. Not only that, but it will automatically copy the old songs' ratings and play counts ... neat.
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Authored by: sjonke on Jun 24, '04 12:27:23PM

Note that this won't work for tracks that you have modified the tags of after having done the original import. Actually it depends on which tags you edited. There is some number of key tags that must match for the track to be considered the same. If you only modified some tracks from a CD then you'll still get the message asking if you want to replace the tracks in your library, but the ones you had modified won't be replaced, instead you'll end up with two copies of those songs.

--- What?

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Re-ripping CDs to new formats in iTunes
Authored by: hondo77 on Jun 24, '04 01:11:01PM

It also doesn't work for tracks that have been joined together. Actually, I think it works only for the first track joined with other tracks. For the rest, though, it doesn't work.

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Re-ripping CDs to new formats in iTunes
Authored by: navratil on Jun 24, '04 01:14:50PM

If you're willing to deal with the double-lossy-compression issue (hint: it's a terrible idea.. but hey, it saves time), just change the import to whatever you want in the preferences, select the tracks you want to convert, and go to Advanced -> Convert Selection. Don't even need the original CD. But of course using varying psychoacoustical models for lossy compression can be.. problematic.

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Re-ripping CDs to new formats in iTunes
Authored by: kajh on Jan 15, '05 03:46:47PM


Doesn't the Advanced -> Convert... create a duplicate of the file(s) you convert? Any way of talling iTunes to update the originale and not make a duplicate?


-Kaj :)

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Re-ripping CDs to new formats in iTunes
Authored by: taxi on Jun 25, '04 09:12:44AM

I've been recently going through this very process, and I can tell you that the 'update' will only occur if ALL of the following are the same:

  • Artist
  • Album
  • Song Title

And, depending on your iTunes settings, the following too:

  • Track Number
  • Total Track Numbers
  • Disc Number
  • Total Disc Numbers

I've recently also created a script that checks through a Library directory, and adds any files it finds to iTunes. Sort of like a reverse of Super Remove Dead Tracks. (link)

You can read about it here

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Seeing Files You haven't re-done yet.
Authored by: taxi on Jun 25, '04 09:32:50AM

Do'h, forgot to put this in the last post:

If you want to see which files you haven't re-converted yet try the following (in the Terminal, naturally, replacing ~shared/Music with wherever you store your iTunes):

find ~shared/Music -name *.mp3

To see how many files you have done, pipe this through wc (that's lowercase L):

find ~shared/Music -name *.mp3 | wc -l

To get a percentage value, to see how far you are through your library, try:

echo $((`find ~shared/Music -name *.m4a | wc -l` *100 / `find ~shared/Music -name *.m?? | wc -l`))

All on one line.

And to see if you have done an album yet (quicker than finding it in iTunes Library):

find ~shared/Music -name *.mp3 | grep Supergrass

Have fun!

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