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Avoid sync and timestamp issues in iTunes 9.1.1 Apps
When iTunes added the ability to use lower bit rate songs on any device, I immediately enabled it on my space-challenged 16GB iPhone. I loved the space it freed up, but recently, every single time I synced the iPhone, iTunes would re-copy every single song -- basically redoing the conversion, which is obviously a time-consuming process.

Thanks to Twitter users @gattermann and @sjbuchanan007, I now know the cause, and the fix.

It turns out there are two versions of iTunes 9.1.1, as seen in the About box: 9.1.1 (11) and 9.1.1 (12). If you have (11), you want to get (12) from Apple's iTunes page, as it fixes the re-sync problem.

In reality, (12) fixes a different problem, which was probably the cause of my sync problem: in (11), the Modification Date on a song changes every time you play it. Version (12) no longer changes this field when merely playing a song.

For some reason, Apple did not push version (12) out to those of us "lucky" enough to get (11) via Software Update. So check your iTunes' About box, and if you see 9.1.1 (11), you'll want to go get the newest version yourself.
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Avoid sync and timestamp issues in iTunes 9.1.1 | 19 comments | Create New Account
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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: TvE on May 06, '10 08:34:13AM
I have not had the time to see if I actually have the described problem (also a huge huge fan of the convert-onthe-sync-fly-to-AAC feature since I 'rip' to lossless), since I have not yet synced with iTunes "nine eleven" ;-)

What I HAVE done though is compare the md5 checksum of the iTunes 9.1.1 I originally downloaded and installed on may 4'th with the one present today. Yes they're different:
TvE-iMac27:~ tve$ md5 /Volumes/Software/0-Apple/iTunes/iTunes9.1.1.dmg 
MD5 (/Volumes/Software/0-Apple/iTunes/iTunes9.1.1.dmg) = 3b0d52909f5960304b7c7ba2572cf184

TvE-iMac27:~ tve$ md5 /Volumes/Software/0-Apple/iTunes/iTunes9.1.1v12måske.dmg 
MD5 (/Volumes/Software/0-Apple/iTunes/iTunes9.1.1v12måske.dmg) = c6f837b5e2c73af8e92b804ada214be5


PS.: "måske" is danish for "maybe" ;-)

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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: Blomma on May 06, '10 09:14:30AM

Silly enough i didnt verify the behavior, but i did have the (11) version and after the reinstall of (12) it did not alter 'Date Modified' when played. What it did tho was upgrade my database, so clearly some change of merit exists between 11 and 12.



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: slswift on May 06, '10 09:42:27AM

Thank you! I had not put it all together yet, but I had noticed that ChronoSync seemed to be constantly backing up my library while I was listening to iTunes. Now I think I know why.

I checked and I did have subversion 11. Now I have 12. Be nice if Software Update would catch that for us. Or Apple would do a REAL version increment if they fix a bug.

Hopefully ChronoSync and my backup NAS will quiet down now.



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: Nickk on May 06, '10 11:19:37AM

I have 9.1.1 (12) but playback is changing last modified date



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: robg on May 06, '10 11:22:09AM

You're the first I've heard of seeing that -- a handful of folks have said that it does, indeed, stop the modification date change. (And that's what I'm seeing here, as it was changing before, and now it's not.)

-rob.



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: matsw on May 11, '10 11:39:47AM

I have the problem too. 9.1.1(12) changes the last modification date when playing AAC songs.



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: MrFiggs on May 26, '10 05:49:23AM

I'm having the same problem with (12) running iTunes in MacOSX Snow Leopard, it keeps updating files everytime i sync my iphone/ipod with the convert on the fly to 128kpbs acc option. is there a way to fix it?



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: scottuf on May 06, '10 01:47:22PM

(12) also fixes a problem where lyrics no longer sync.



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: Stormchild on May 06, '10 05:06:22PM
I have iTunes 9.1.1 (11) and for me, the modification date of songs does not change when merely playing songs. Evidently the issue does not affect all users.

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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: robg on May 06, '10 05:51:36PM

If I recall correctly, it's only AAC files that change -- try one of those?

-rob.



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: Frederico on May 06, '10 09:39:28PM

Wish I had seen this sooner. I not only was being forced on each sync to downsample over 1100 tunes (about 2-3 hours; and of course if you cancel, you walk away with no music) but I also kept getting error 13109 by using the 'Fill free space with music' option.

I ended up doing a factory wipe, which cured all of that, including the sync issue described in this hint, and repeatedly could connect and sync and would only swap out 30-90 random songs (about 15 minutes at most) but when I restored again from backup to push my 80-ish apps and all their data (particularly my SMS and MMS history), the sync issue promptly returned. Some sort of backup data must be involved.

I will assume this 11*censored*12 fix will work; if not, I will report back.



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Come, Come, Now!
Authored by: Frederico on May 07, '10 02:29:48PM

LOL! MOSXH is censoring latin terms! Awesome! Dead languages, offensive or not, must be purged! (:

Vidi Veni Abdo, et tu, Rob?



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: jreese on May 08, '10 05:25:21PM

Thank you, thank you, thank you! This was driving me crazy.



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: bayz on May 09, '10 01:52:44AM

I have a similar problem and I'm already using version (12). When I sync with the convert option, a small amount of my songs get copied over again for no reason. It seems to only effect some (but not all) songs that have a rating with a half star or are from an album that has a rating with a half star. It seems to effect 'AC/DC' songs the most, so I thought it might have something to do with special characters, but some of the songs don't seem to have any special characters. I had to turn of the convert option. Any help would be appreciated...



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: dfbills on May 09, '10 09:54:04AM

Where are the "down-rez'd" files stored on the filesystem?

---
-d



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: matsw on May 11, '10 10:24:59PM

They are not stored, they are converted in memory or to a temporary file and transferred to the iPod, the 128 bps versions are not kept.



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Avoid sync and timestamp issues in iTunes 9.1.1
Authored by: thewizardofaz on May 11, '10 07:25:45AM

I visited two of the links posted, taking me to update pages. The two both clearly stated this was version 9.1.1 (11). In lieu of downloading each one, what would you recommend for me to do?

Rick



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9.1.1(12) added in Spanish when i speak English
Authored by: Marilynn on May 12, '10 08:08:28AM

I was prompted to download to 9.1.9 (12). I live half the year in Mexico and they downloaded the new changes in Spanish. I am for the US and am not fluent in Spanish! I would like my genius side bar and itunes store to be in English. HELP!!!



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9.1.1(12) added in Spanish when i speak English
Authored by: MrFiggs on May 26, '10 05:46:33AM

are you using windows or mac?
if windows just go to region and language in the control panel and set everything to USA, english.

hope this helps



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