Jesse Hollington
Retired
- Joined
- Nov 15, 2004
- Messages
- 13,228
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- 52
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- Toronto, Canada
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There seems to be some confusion going around with regards to album artwork and iTunes 7 (and now 7.0.1), and how it should be handled and what features do and don't work as expected right now.
I am therefore going to attempt to clarify this situation, based on my own specific experience and testing of these issues in iTunes 7.
But first, a bit of background:
In iTunes 6 (and prior versions), the only way to add album artwork to a track (or group of tracks), was to select those tracks and place the album artwork directly into those tracks (there were a couple of methods for doing this, but the point is that the artwork was added directly into the tracks' ID3 tags).
When displaying artwork in iTunes, it would read these tags in order to display the artwork.
To display artwork on the iPod, the artwork in the music file would be converted by iTunes into an album artwork database on the iPod itself. The iPod would ignore whatever image was in the tag, and simply read the uncompressed bitmap from it's artwork database.
This conversion process is done by iTunes, and only when the music file is transferred from iTunes to the iPod (automatically or manually). However, in automatic mode, the addition of the artwork into the tag would of course cause iTunes to see the file as updated, and therefore re-transfer it to the iPod, updating the album artwork in the process.
The one caveat here is that album artwork added directly to a track already on your iPod (via manual mode) would not be converted by iTunes for display on the iPod. The song file itself would need to be retransferred from your computer's iTunes library for the artwork to be converted properly.
So, enter iTunes 7....
Other than a bug in iTunes 7.0.0 (concerning adding artwork to MULTIPLE tracks simultaneously, which was fixed in 7.0.1), none of the behaviour from iTunes 6 has actually changed. Adding album artwork manually to your tracks works the same way that it always has.
However, what iTunes 7 now brings to the table is a feature to automatically fetch album artwork from the iTunes Store, primarily intended to supplement the coverflow browser feature so that there's artwork to look at within your library.
This automatic download of album artwork is where things start to fall apart. The problem is that iTunes does not place this downloaded artwork into your MP3/AAC files. In fact, it doesn't update the files at all -- rather it puts the artwork into a separate database that's maintained to support the coverflow feature.
Now, when viewing the track through iTunes, all indications will appear that the artwork is there and in place, but it's not actually IN your MP3/AAC file. iTunes is simply pulling it from it's own cache and displaying it in all the right places. When the track actually is transferred or updated on the iPod, iTunes will even correctly pull the album artwork from it's own cache, convert it for iPod viewing, and put it into the proper database.
However, because the file itself does not get updated when downloading artwork automatically, iTunes doesn't see that the file has changed and therefore won't see any reason to transfer any of that file's information to the iPod. Hence, the newly downloaded album artwork does not appear on the iPod until something else about that file changes.
However, if you add the artwork to your tracks the same way that you did in iTunes 6, everything will continue to work the way it's supposed to.
Alternatively, if you do want to use the automatic artwork downloading feature, and have a lot of tracks that require it, the simplest solution might be to just reload your album artwork onto your iPod from your iTunes library. To do this, simply DEselect "Display Album Artwork", sync your iPod, and then REselect that option. This will remove ALL album artwork from your iPod, and then force iTunes to rebuild the artwork database, retransferring all of your album artwork in the process, whether it's in the file tags themselves or in iTunes' own artwork cache.
I am therefore going to attempt to clarify this situation, based on my own specific experience and testing of these issues in iTunes 7.
But first, a bit of background:
In iTunes 6 (and prior versions), the only way to add album artwork to a track (or group of tracks), was to select those tracks and place the album artwork directly into those tracks (there were a couple of methods for doing this, but the point is that the artwork was added directly into the tracks' ID3 tags).
When displaying artwork in iTunes, it would read these tags in order to display the artwork.
To display artwork on the iPod, the artwork in the music file would be converted by iTunes into an album artwork database on the iPod itself. The iPod would ignore whatever image was in the tag, and simply read the uncompressed bitmap from it's artwork database.
This conversion process is done by iTunes, and only when the music file is transferred from iTunes to the iPod (automatically or manually). However, in automatic mode, the addition of the artwork into the tag would of course cause iTunes to see the file as updated, and therefore re-transfer it to the iPod, updating the album artwork in the process.
The one caveat here is that album artwork added directly to a track already on your iPod (via manual mode) would not be converted by iTunes for display on the iPod. The song file itself would need to be retransferred from your computer's iTunes library for the artwork to be converted properly.
So, enter iTunes 7....
Other than a bug in iTunes 7.0.0 (concerning adding artwork to MULTIPLE tracks simultaneously, which was fixed in 7.0.1), none of the behaviour from iTunes 6 has actually changed. Adding album artwork manually to your tracks works the same way that it always has.
However, what iTunes 7 now brings to the table is a feature to automatically fetch album artwork from the iTunes Store, primarily intended to supplement the coverflow browser feature so that there's artwork to look at within your library.
This automatic download of album artwork is where things start to fall apart. The problem is that iTunes does not place this downloaded artwork into your MP3/AAC files. In fact, it doesn't update the files at all -- rather it puts the artwork into a separate database that's maintained to support the coverflow feature.
Now, when viewing the track through iTunes, all indications will appear that the artwork is there and in place, but it's not actually IN your MP3/AAC file. iTunes is simply pulling it from it's own cache and displaying it in all the right places. When the track actually is transferred or updated on the iPod, iTunes will even correctly pull the album artwork from it's own cache, convert it for iPod viewing, and put it into the proper database.
However, because the file itself does not get updated when downloading artwork automatically, iTunes doesn't see that the file has changed and therefore won't see any reason to transfer any of that file's information to the iPod. Hence, the newly downloaded album artwork does not appear on the iPod until something else about that file changes.
However, if you add the artwork to your tracks the same way that you did in iTunes 6, everything will continue to work the way it's supposed to.
Alternatively, if you do want to use the automatic artwork downloading feature, and have a lot of tracks that require it, the simplest solution might be to just reload your album artwork onto your iPod from your iTunes library. To do this, simply DEselect "Display Album Artwork", sync your iPod, and then REselect that option. This will remove ALL album artwork from your iPod, and then force iTunes to rebuild the artwork database, retransferring all of your album artwork in the process, whether it's in the file tags themselves or in iTunes' own artwork cache.