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Regarding web images, iTunes covers, and file sizes Apps
I've just come across this unexpected behaviour while adding some artwork to my music in iTunes. The obvious way to do this is to drag a picture straight from your web browser onto iTunes' artwork pane. But it seems that this converts the picture into PNG format, i.e. if the original picture was a JPEG, then the result may be five or ten times larger! Both Safari and Camino do the conversion; I expect that it's a function of Mac OS X (QuickTime?) and will apply to other web browsers too.

I verified this issue on my machine by using the Save Artwork to Folder AppleScript -- it extracts the images from iTunes, and you can then see the true filetype and size in the Finder.

So, the alternative is to drag the picture from the web browser to a folder somewhere (e.g. on the desktop, or to a Finder window), and then drag that image onto iTunes. This preserves the original format, which can save a lot of space -- I expect to have room for over 50 more albums as a result.
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Regarding web images, iTunes covers, and file sizes
Authored by: adrianm on Aug 02, '04 12:05:04PM

It also stores the artwork at the same dimensions as the file you dropped, so dropping a big 300dpi scan will seriously bloat your mp3/aac file.

iTunes really should give the option to downsample images attached as artwork



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Regarding web images, iTunes covers, and file sizes
Authored by: seanhussey on Aug 02, '04 02:48:44PM

Not to mention that music moved to the iPod could have the artwork stripped. No use for it on there.



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Regarding web images, iTunes covers, and file sizes
Authored by: MPMoriarty on Aug 02, '04 04:41:16PM

I am sorta glad it saves it to the iPod. My whole music library got trashed and was not able to recovered. Luckily all my music was still on my iPod so when I auto-synced it back, everything was back to normal. And all my album art that took me an entire weekend to gather was still intact.



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Regarding web images, iTunes covers, and file sizes
Authored by: gidds on Aug 05, '04 07:21:24PM

Me too -- I've still spent ages re-ripping stuff, but having 30GB of it preserved on the iPod saved quite a bit of time.

As far as file sizes go, most JPEGs tend to be very small compared with the size of the audio. The ones from Amazon, for example, are rarely much more than 30KB or so, which is usually less than 1% of a track.

My preferred site is www.walmart.com, which generally has artwork at the larger size of 500x500, but even these are usually under 50KB. I think that, given those file sizes, 500x500 is a reasonable size for artwork. (Especially as when you click on artwork in iTunes to see it in a separate window, iTunes expands it by 50% in each direction!)

However, convert those to PNG and the file sizes increase rapidly -- often 5 times larger, and sometimes over 10 times! *Then* it starts to take a significant fraction of the audio file. That's why I thought people should be aware of this issue!

---

Andy/



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Regarding web images, iTunes covers, and file sizes
Authored by: genericuser on Jul 01, '05 06:06:13PM

i found this topic via ggogle. do you know an easy way to find all wrong covered songs? Perhaps 1/2 of my collection has a 'fat-cover'...

deckard



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