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Determining Gapless Playback Information

One of the many issues I'm having with iTunes, Time Capsule (where the music is stored) and AirTunes.
Does anyone know how to terminate the 'determining gapless playback information' function? That is to say, keep it from even happening/starting?
Everytime I start iTunes, it does this. I have over 14,000 songs and I get the spinning beach ball and cannot use iTunes. If I let it run for awhile (2 hours?), I can eventually X out of it in the iTunes window.
I've dumped preferences and re-launched. I've unchecked the preferences that seem like they could be related (cross-fade, etc.).
When I DO get it to work, it plays one song and goes silent- although it shows the music as playing in the iTunes window. Separate issue, likely...
Thanks in advance for input.

iMac G5 1.8GHz, Mac OS X (10.5.6)

Posted on Mar 8, 2009 12:06 PM

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Posted on Aug 18, 2017 7:34 PM

OSX 10.12.6

Itunes 12.6.2.20


Still having this problem. Here's what I did, which will mess up tones and podcasts (a little), as well as requiring that you re-sync any ios devices and transfer the songs from scratch.


However, you won't have to do any mp3->aac converting, and you can keep your playlists, file locations, play count, etc.


1. Open the Itunes folder. It should contain a file called 'iTunes Library.itl'.

2. Start up Itunes.

3. The Itunes folder should now contain a file called 'iTunes Library.xml'. Copy this file to another directory, such as the desktop.

4. Shut down itunes.

5. Move the 'iTunes Library.itl' file to another directory, such as the desktop.

6. Open itunes.

7. In the itunes menu bar, select File -> Library -> Import playlist, and select the xml file from step 3.

8. Wait. This took about 30-40 seconds for me, with <4000 songs on a 2014 macbook pro.


And you should have your library back!


To add back tones, and any other lost files, locate them in the 'iTunes Media' folder and drag-and-drop them back into itunes.


To avoid this problem in the future, try adding songs (especially mp3 320kbps and ALAC files) to itunes only by adding the files themselves, (not in subfolders), to the file 'Automatically Add to iTunes' in 'iTunes Media' in 'iTunes' folder. (this is untested, since the problem is so sporadic).

119 replies

May 24, 2014 8:47 AM in response to Darren.McMurtrie

Hi everyone, well I finally solved this for myself but I don't think you're going to like how I did it much!

In my experience, it seems that iTunes and Apple really "likes" AAC files and not mp3 etc. etc. so much. So, I converted ten tracks of mine per day manually ( I couldn't find a way to do them in "batches" )

Here's the routine. Highlight a track and right click it. Scroll down and click on Create AAC version. Click on this and very quickly iTunes creates an AAC version of the track underneath the track you just converted. Go back up to the original format track and right click it. Go down to Delete, click on Delete, click on Delete Song and then click on Move To Trash. The original song will now be in your trash. Secure empty your Trash after converting all the titles you want to in that session and then when you open up iTunes again the titles you converted to AAC format will not flash off in the display bar at the top of iTunes. Labour intensive yes, but it does fix the issue once and for all. Also, as a benefit, audio files thus converted work much smoother when used in other applications such as iMovie.

Hope this helps all of you out there! I'm running a MacBook Pro with Mavericks and iTunes 11.2.1.

May 24, 2014 9:00 AM in response to Drumbeater

Drumbeater wrote:


Hi everyone, well I finally solved this for myself but I don't think you're going to like how I did it much!

In my experience, it seems that iTunes and Apple really "likes" AAC files and not mp3 etc. etc. so much. So, I converted ten tracks of mine per day manually ( I couldn't find a way to do them in "batches" )

I have a far better idea!

Instead of converting a bucn of files, simply remove the MP3 files from iTunes, quit iTunes, restart it and add them back.

May 24, 2014 9:37 AM in response to Chris CA

Well converting them to AAC definitley works for me but then you have to convert them back to mp3 to put them on mp3 CDs for the car or mp3 memory sticks for the other car etc etc. Such a pain. You can easily convert all mp3s to AAC at once though by highlighting all of them in iTunes and then going under File to Create New Version. It doesn't have to be done one at a time or by removing and re-importing.

Dec 23, 2014 12:58 PM in response to Darren.McMurtrie

The only one working solution that I found, without re-encoding all the files with the problem is adding to the library LISTENING to the file.

I try to explain better: instead to drag&drop the files in itunes, just double click on each mp3 and let itunes reproduce the file and add to the library.


I'm doing this to all the audio files with the problem. Delete the album from the library mantaining the files, go to the music directory, find the right album and double click each mp3 just to open in itunes and add the item in library.

Feb 26, 2015 2:18 PM in response to jnajdzion

My library is over 40,000 files. I have 301 that go through this gapless playback nonsense every time I start iTunes.


I have a 2008 Mac Pro 8-core, 22 Gb RAM, Yosemite 10.10.2 and iTunes 12.1.0.50. This only started happening a week ago. Since then I have formatted my hard drive, and installed everything from scratch, and the problem persists. ALL my files, every single one, is an AAC file.


Maybe I could do something with the offending files, like delete and convert and re-import them, if only I knew which ones they are. Their names flash by on the iTunes status bar when iTunes opens, far too fast to read what they are. Any ideas on how to find out what the offending files are. I have seen one or two and none of them seem to have anything in common.


Thanks.

Sep 30, 2015 4:51 PM in response to zioweb

I tried it, but it didn't work for me. My guess is, that something in the "itunes library.itl" is broken, because when I let itunes create a new library (rename /user/Music/iTunes to iTunes_backup) and then put the files back using drag & drop, it works perfectly fine. No "determining gapless playback information" anymore.


My next try is to rebuild my whole library by importing the .xml file... but it needs a lot of space :-)

Oct 29, 2015 5:25 AM in response to Darren.McMurtrie

This is bloody awful


I recently downloaded a Dick's Pick - Grateful Dead live concert. You would expect a "gapless" rendition of the show. If this was a CD this would not be an issue. In the past downloads did support "gapless".


Apple now refuses to acknowledge or issue any type of refund for this obvious quality issue with their products. As a matter of fact, everyone I've communicated with doesn't seem to even understand what the issue is. They keep referring me to their Terms of Service.

Determining Gapless Playback Information

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