ITunes 10.6/Quicktime 7 1080p playback issue/frame skipping

I have a playback issue with the 1080p videos on the recent version of iTunes - 10.6. I also tried playing the same videos on Quicktime where I was able to find that the videos were playing at around 20fps as opposed to their normal rate - 24fps~25fps.
I seem to barely meet the 1080p playback requirements on iTunes, but I know that I'm able to watch 1080p videos on Window Media Player(WMP) 12 without any issues. Aside from WMP, I'm able to watch 1080p videos on Youtube whenever hardware acceleration is enabled. I assume that WMP utilizes hardware acceleration as well.
The playback issue/frame skipping is probably caused by iTunes 10.6 not using hardware acceleration.
Windows Hardware
PC with a 1GHz Intel or AMD processor and 512MB of RAM
To play Standard Definition video from the iTunes Store, an Intel Pentium D or faster processor, 512MB of RAM, and a DirectX 9.0-compatible video card is required
To play 720p HD video, an iTunes LP, or iTunes Extras, a 2.0GHz Intel Core 2 Duo or faster processor, 1GB of RAM, and an Intel GMA X3000, ATI Radeon X1300, or NVIDIA GeForce 6150 or better is required
To play 1080p HD video, a 2.4GHz Intel Core 2 Duo or faster processor, 2GB of RAM, and an Intel GMA X4500HD; ATI Radeon HD 2400; Nvidia GeForce 8300 GS or better is required
Screen resolution of 1024x768 or greater; 1280x800 or greater is required to play an iTunes LP or iTunes Extras
16-bit sound card and speakers
Broadband Internet connection to use the iTunes Store
iTunes-compatible CD or DVD recorder to create audio CDs, MP3 CDs, or back-up CDs or DVDs
My PC specs:
Pentium Dual Core 2.3 Ghz
2GB DDR3
Intel GMA X4500MHD

Bump! Sounds the same as my problem, but maybe no one but us are having the issue since no one will answer any of my posts

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Thanks for any help

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my home computer, where my library is stored, is running XP and it is not compatible with iMatch!
http://www.apple.com/itunes/download/:
iTunes 10.5 system requirements, Windows
Windows XP Service Pack 2 or later, 32-bit editions of Windows Vista, or 32-bit editions of Windows 7
I'm not sure how you're testing this with iMatch since Apple's site says it is not available yet, and there's no mention of any different system requirements (or any system requirements for that matter).
I don't know about the mp3 problem. It might help if you provided a link to specific examples others could test. I would think if this was a common issue with old mp3s there would have been 100,000 posts in this thread since it was started a month ago.

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WINDOWS VISTA ITUNES VIDEO PLAYBACK ISSUE!!!!!! AAHHHHHHH!!! HELP!!!!!!!!!!

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hi slideaway!
my computer has a right proper meltdown, switching itself off and restarting to a "Windows has recovered from a serious error" sort of message.
good lord. are you getting any sort of blue screen? if so, what numerical and text codes are you getting with it? (ie 0x[zeros/letters/numbers] CAPSANDUNDERSCORES)
here's a reference on the sorts of things i'm asking about:
Troubleshooting Windows Stop Messages
if you're not seeing a blue screen (or just a flash of one), we can use this technique to make hidden blue screens appear for us:
1) Open your system control panel (Start->Control Panels->System).
2) Select the "Advanced" tab.
3) Click the "Startup and Recover" section's "Settings" button
4) Verify that under "System Failure" the "Automatically restart" checkbox is not checked.
love, b

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A small update from my first post here since this topic's getting bumped - here's my temporary workaround with playback in iTunes 7.0.2.16, and it's worked:
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If you need to turn off the music for a moment, just mute the volume in iTunes (drag the volume slider all the way to the left).
I find this to be the only workable solution for me until the next iTunes revision comes out - playback has been perfect about 100% of the time. Hope it works for you! Lemme know if it does.

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I upgraded to quicktime 7.6 yesterday and is has caused video playback issues when in higher performance with my Macbook pro. I am trying to play 1080p footage in the h.264 compression codec and it is now stuttering. It played fine in my previous quicktime player before the upgrade and it seems to play fine in the better battery setting. The problem occurs with the 9600 nvidia chip but the 9400 works okay. This is troublesome because the 9600 should out preform the 9400.

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Help - I downloaded a TV episode I missed from Lost and it plays back in a diffused screen of about 12 blocks. I tried all the fixes on Help to no avail. Any suggestions?? I can't go on w/o seeing this episode!!

Got it solved!! Thanks!! I just needed to view it in
another program.
Just curious, what program did you use? I thought you had to use itunes or quicktime. I have also been trying to watch Lost on a Dell in Windows XP, and have been having playback issues as well.

Video Playback issues with Ipod and Itunes

OK I just bought some episodes of a TV show last night, and I put them on my ipod(5th gen. 30GB). About halfway-sometimes 2/3-of the way through, the video stops playing, no audio, no movement, just stops like it is paused. I deleted them off my ipod, made sure my ipod was up to date, and put them back on. Problems still there. Then i went to watch them in Itunes, and in the same places they freeze again. Itunes is up to date too.So now i have these videos that i paid for, that don't work completely on either my Ipod nor on Itunes. Help Please?

the good news is that you have pretty much isolated the issue. if the videos don't play completely on either the ipod or itunes, then the videos or tv shows are possibly corrupted. what you can do is contact the itunes store via a web form ( click here to go to form and scroll to the bottom)
tell the itunes store your tv shows have playback issues and say the same thing you posted. the itunes store should allow you to re-download the tv shows.

Really Bad Playback Issue w/iTunes

I really hope there's someone who can help with this issue! Sorry for the long post but
I wanted to cover as many possible questions right away.
While working on photoshop files or switching between apps or windows, opening
finder windows, basically doing anything outside of itunes seems to cause itunes
to cut out briefly or completely stop OR the audio stops but the song keeps
playing. Other times a song will stop and then only a loud HISS comes from the
speakers.
I have unplugged the 3rd party speakers and played just through the small
speaker in the G5 and the issues remain.
I've done a fairly thorough search for this issue and have found a few postings
(http://tinyurl.com/yajdg6z) (<--windows version) about it but no answers offered except for one that
suggested:
"right click on the song and go to 'Convert ID3 Tags...'then from the drop down
menu pick one, mine works with v1.1
after that the song should start working again."
I converted my entire library to 1.0 and the problem remained. _I do not_ recommend anyone
do this as itunes will duplicate your entire library!
*This is a brand new (month or so) install of 10.5.8 on a 300GB drive w/tons of*
*space in a Dual 2.0 G5 w/8GB's or RAM. itunes 9.0.3 (15)*
This issue was there w/10.4.11 using the OEM boot drive and I'm still having
this issue even having done a new installation on a NEW, bigger freakin drive.
The itunes library resides on an external 500GB firewire drive with 39 GB of
space available, so no airtunes or network to contend with.
I've also deleted my entire song list twice. Once re-importing the original
files and finding the issue remained, then deleted again and imported the backup
of the songs from my backup drive in case the 1st drive the originals reside on
was having issues. I guess it isn't!
When working w/Photoshop, the maximum amount of RAM being used by all processes
is a little over 4GB. Since I have 8GB (that's the max amount of RAM this
machine can hold) AND a completely empty 160GB internal drive for Photoshop
scratch disk space, I should be well within tolerances, but I could be wrong for
unknown reasons. I have allotted CS3 it's maximum amount of RAM which is
3072MB.
I have MenuMeters in the toolbar which gives me a constant readout of processor
and RAM usage, so I'll see it if there is a spike or maxing out of the
processor at any given time. I usually never see that unless I am applying an
effect that requires that much, but the iTunes issue comes when just using a
very small healing brush and I'm cleaning up a scan.
BUT, and this is a big "but", the problem is not isolated to just when I'm using
CS3. CS3 might be running and doing nothing, and I'll be switching windows or
to a different app or just advancing to the next song in iTunes itself and bad
things will happen.
With iTunes being the only app running the problemwas minimized. I tried
opening a lot of finder windows with coverflow andscrolling and the problem
wasn't too bad, occurring ONLY when I did a title change of
a song in iTunes. As soon as Safari was opened and I had multiple windows open,
the problem was back with no CS3 running. Basically if I run any app with itunes,
itunes has problems.
I had left itunes running with some Safari windows open to some CNN pages and wasn't
even at the keyboard and heard itunes cutting in and out.
I do all the necessary utilities (DiskUtility, Disk Warrior, iDefrag, Applejack, and CleanMyMac)
to keep everything up and running so why is this going on? I have also uninstalled Perian just
+in case+ that might help. It didn't.
This is driving me nuts!
Help!
Eric

Yep, unfortunately.
I have 2 500GB FW drives that are clones of each other.
One drive I work from and the other is the backup.
I have deleted the library from itunes and loaded the +clone drives+ copies of the music instead, in case working on images while playing music from the same drive was causing the issue.
Also I switched FW ports the drives are plugged into; switching from the PCI FW card they were plugged into, to the built-in FW port on the G5.
Worst case I will just play music through the wired network on my G4 and plug in the good speakers into the headphone/speaker jack on the G4. I've tested this out using +itunes 6+ which is what is on my G4. I'll update itunes on the G4 eventually if no other suggestions come in. I may try downgrading to itunes 8.2 on the G5 unless I hear otherwise.
You're right this shouldn't happen but seems to be specific to this particular machine as a previous G5 that died on me had no problems. I bought this one used so I can't speak to it's previous history, but it demoed just fine w/final cut and HD movies that were being edited by the previous owner.
I've had this issue since getting this G5. It occurred using the boot drive from my original G5, the boot drive that came with this G5, and the present brand new 300GB boot drive that I'm gonna stay with.
Things that have come to mind as possible culprits have been bad memory and the application switcher if that's still used in Leopard.
Eric

Frame Rate Export-Playback Issue

Hello,
I'm relatively new to FCP 7.
But here's the problem..I have a timeline with the following sequence settings:
720p
H.264
50fps
But somehow whenever I export it in .MOV it seems to have a playback issue. All my audio gets jumbled up..it isn't synced anymore.
Doesn't seem to have a issue when I export in .3gp or in .m4v
Can someone help?
Thank you.

Yup...that's a problem. FCP and H.264 don't mix. Sync issues, export issues...don't edit H.264 native in FCP, period. If you use FCP 7 or earlier, you MUST convert your footage to an editing codec, like ProRes. And use ProRes sequence settings.
A quick fix you can try is to go into the sequence settings, change the COMPRESSOR to ProRes 422...and render the sequence, then export.

ITunes for Windows, QuickTime, and Apple Application Support

Disclaimer: Apple does not necessarily endorse any suggestions, solutions, or third-party software products that may be mentioned in the topic below. Apple encourages you to first seek a solution at Apple Support. The following links are provided as is, with no guarantee of the effectiveness or reliability of the information. Apple does not guarantee that these links will be maintained or functional at any given time. Use the information below at your own discretion.
*The relationship between iTunes for Windows and QuickTime for Windows*
Conceptually, you don't go too far wrong thinking of iTunes for Windows as a gigantic QuickTime for Windows plug-in. QuickTime for Windows provides the audio and video playback capabilities for iTunes for Windows, the codecs iTunes for Windows uses for importing and burning CDs, and so forth.
So, under normal circumstances, if you uninstall your QuickTime for Windows your iTunes for Windows will no longer launch. The exception is if you install a different application such as QuickTime Alternaltive, which also provides QuickTime playback capabilities. However, most such applications (QuickTime Alternative being a good example) are themselves built from actual QuickTime program files. So there's really no getting away from the requirement to have QuickTime for Windows componentry installed on your computer in order to get your iTunes for Windows to launch and run.
In addition to needing some QuickTime for Windows installed on the computer for iTunes for Windows, a given iTunes for Windows version will require *at mininum a particular version* of QuickTime for Windows to be installed on the computer in order for that iTunes for Windows version to run. For example, iTunes for Windows 5.0.0.35 requires at least a release version of QuickTime for Windows 7.0.2 to run correctly, iTunes for Windows 6.0.0.18 requires at least a QuickTime for Windows 7.0.3, and so on. The same applies for solutions involving other programs like QuickTime Alternative. An iTunes for Windows 6.0.0.18 would require an installed version of QuickTime Alternative to made from (at least) QuickTime for Windows 7.0.3 componentry in order for iTunes to run.
The most straightforward way to go about getting your iTunes for Windows launching again after you've uninstalled your QuickTime for Windows is simply to reinstall QuickTime for Windows. You can get the latest version of QuickTime for Windows XP, Windows Vista and Windows 7 from the following download page at the Apple website. (Use the download link that doesn't mention iTunes.)
[Latest QuickTime for Windows version|http://www.apple.com/quicktime/download>
*The relationship between iTunes and Apple Application Support*
iTunes for Windows uses a number of the same program files as other Apple software for Windows (most notably, QuickTime for Windows and Safari for Windows). Starting with iTunes for Windows version 9.0.0, QuickTime for Windows version 7.6.4, and Safari for Windows 4.0.4, program files common to more than one of the programs have been stored in a single location: "Apple Application Support".
So, if you uninstall your Apple Application Support (using the Add or Remove programs control panel in Windows XP, or using Programs and Features in Windows Vista or Windows 7), your iTunes for Windows 9.0.0 (or higher version) will no longer launch ... because several essential program files for iTunes for Windows 9.0.0 (or higher version) will have been uninstalled.
At the time of writing this user tip, Apple Application Support is not available as a "standalone" download from Apple. It is only available as part of the installer bundles for the most recent versions of iTunes for Windows, Safari for Windows and QuickTime for Windows. So if you have uninstalled your Apple Application Support and your iTunes for Windows 9.0.0 (or higher version) is no longer launching, the most straightforward way of getting your iTunes for Windows launching again is to uninstall your existing version of iTunes for Windows and reinstall the latest version of iTunes for Windows. (The iTunes reinstall should also reinstall your Apple Application Support.)
[Latest iTunes for Windows version|http://www.apple.com/itunes/download>
If, however, you've uninstalled both your Apple Application Support and your QuickTime for Windows, the most straightforward way of getting them both reinstalled is to download the latest QuickTime for Windows installer from the Apple website. (Use the download link that doesn't mention iTunes.)
[Latest QuickTime for Windows version|http://www.apple.com/quicktime/download>
This is the 1st version of this tip. It was submitted on March 7, 2010 by b noir.
Do you want to provide feedback on this User Contributed Tip or contribute your own? If you have achieved Level 2 status, visit the User Tips Library Contributions forum for more information.

Let's try a standalone Apple Application Support install. It still might not install, but fingers crossed any error messages will give us a better idea of the underlying cause of the issue.
Download and save a copy of the iTunesSetup.exe (or iTunes64setup.exe) installer file to your hard drive:
http://www.apple.com/itunes/download/
Download and install the free trial version of WinRAR:
http://www.rarlab.com/
Right-click the iTunesSetup.exe (or iTunes64Setup.exe), and select "Extract to iTunesSetup" (or "Extract to iTunes64Setup"). WinRAR will expand the contents of the file into a folder called "iTunesSetup" (or "iTunes64Setup").
Go into the folder and doubleclick the AppleApplicationSupport.msi to do a standalone AAS install.
Does it install properly for you?
If instead you get an error message during the install, let us know what it says. (Precise text, please.)

Premiere Pro CS6 Mac Playback Issues

I've searched for similar issues, and while I found plenty of playback issues, I didn't see anything like what I'm experiencing.
MacPro Quad-Core Xeon 2.26 x2 (8b cores)
12 GB ram
OS 10.6.8 (can't update this due to other infrastructure)
Nvidia GeForce GT 120
FAST Fiber attached SAN
Local Raid0 media drive
I know the GPU isn't compatible with the Mercury hardware acceleration.
I've been a Premiere Pro user since version 2 and have kept current through the years. I'm happily running CS5.5 on PC's in my home office. I recently installed the trial version of CS6 on my Mac at work to evaluate for that environment, and I'm pulling my hair out trying to get over some basic issues. I have no problems with Media Encoder or AE.
In Premiere using preview or program (timeline), playback stops after roughly a second... though it varies by several frames each time. I tested this with various video files, .wav files, stills (jpeg, psd), etc. I even tested with black video and bars generated inside Premiere. The problem persists with all of the above... click play, and playback stops after about a second. Scrubbing works great... I've tried different playback resolutions. I'm not using any 3rd party monitoring devices or I/O cards on this machine.
I have FCP 7 installed on the same machine and have no trouble editing and playing 1080i video all day long.
Any ideas?
Thanks in advance!

The above suggestion worked for me briefly, but the problem keeps re-occuring.
I too am using Snow Leopard 10.6.8, NVIDIA gfx card (8800) and an ATI Radeon 5500.
Premiere played back fine in Lion and Mountain Lion, but I downgraded because I have old quicktime files and Final Cut 7 projects that i need to work with so Lion is not an option for me.
Bizarre behavior if you ask me.
Any help on this?

ITunes 10.6/Quicktime 7 1080p playback issue/frame skipping

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