QuickTime stops playing

I had to downgrade from Pro 7 to Pro 6 because the MBox wont work with Pro 7 on the Net. Now for some reason (and it seems totally random) im playing a track in quicktime, and it will stop. when i look at it, the "Markers" have moved so it stopped at the "end marker". I put the markers back to where the belong (ie at the start and very end) and hit play, and it plays, but the time stays at 00:00 and the progress arrow doesnt move. It then plays for around 4 seconds before, once again, stopping. I click anywhere on the track and it will play for about 2 seconds before once again, stopping!
What is going on?

A few things don't match with your profile.
QT 7 requires 10.3.9. And Digidesign has upgraded their software to work with Tiger, and QuickTime 7.
Since you say you've "downgraded" to QT 6 we can only assume you use 10.3.9.
Open the Audio MIDI Setup app (Utilities folder) and set the audio out format to 44100Hz. Quit and relaunch the app and try the file again.
Update your third party software and you'll have a better experience.

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I upgraded some things and Quicktime stopped playing MPEG-2 movies (black screen)!

I upgraded some things and Quicktime stopped playing MPEG-2 movies (black screen)!
I need help, I was ending a project and now it just plays black!
I have quicktime X.
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thank you.

Quicktime was working fine, I am not sure what Quicktime it was. I upgraded Java, I am not sure if I upgraded Quicktime. After that all quicktime movies with "MPEG-2 Video, Linear PCM, Timecode" codecs started playing black with audio in the background. iMovie was not used. Thank you, I am beyond desperate and I am starting to think no one can help me with this.
Then I am not sure how your created the MPEG-2/PCM MOV files. Files not imported via the MPEG-2 Import codec would normall remain in their long GOP compression format which it not edit compatible in QT based video editors. Those that are imported via the codec to make them edit-compatible then need the codec for proper playback in QT based players/editors.
Since you now say that "Quicktime is working fine," am I to assume that it is After Effects that is playing "black" screen videos and that the files play fine in the QT players? Since you also mention the files are time coded, am I to assume you used FCP or some other app to import the files (which may use the same sort of import workflow) or am I to assume it is the timecode data itself that you feel is now causing the problem. In either case, a Java update may have been a security update that is now causing your current issue by disallowing access to the required playback component for some unknown reason which Apple is unlikely to divulge if it refers to a software security risk.
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"This just recently happened."
In that case, try the following............
Repair permissions & restart.
http://docs.info.apple.com/article.html?artnum=300832 Mac OS X: No audio from certain multimedia content
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Quit out of the GarageBand app.

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Interesting question. I'm using dual monitors also and didn't get the same result when dragging a .mov from the primary to secondary monitor. The only thing I can think of is try opening the QT control panel to Advanced. Where it shows Video, try experimenting with those preferences

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Here's what I'm getting

Telling quicktime to stop playing if switched to another tab or browser?

Hey Everyone
Ok say i have a movie on a web page which is playing, and the user switches to another tab or browser window, is there anyway to tell quicktime to stop playing if this happens?
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No.
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Hi, my mac has stopped playing some avi files (that used to work). I can see the video. Does anyone know why and what i can do? My version of quicktime is 7.6.9.

Hi i have avi files saved in iphoto that i used to be able to play through quicktime. However in the last few weeks i cannot play many of these files. I can see the videos and click on them but nothing happens (i have version 7.6.9 of quicktime). Does anyone know why this has happened and what i can do about this?
Thanks.

What do you mean by what audio/video formats are involved? These are all files from several digital cameras.
As previously stated, AVI is a file container. It is somewhat old and its originator, Microsoft, dropped official support of it over a decade ago. However, it remains popular with PC users since almost any valid audio and/or video compression format can be stuffed to the file which synchronizes the content by interleaving the individual audio and video frames. The compression format is the specific manner in which the audio and video data are encoded as it is placed in the AVI container. You can find the compression format by inspecting the file in the Finder "Info" window, or in the "Inspector" window of the QT player (or other media player) if the file can be opened.
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---Lawrence
Message was edited by: lcoffin

Podcast (original): http://council.cio.com/podcast/temp.mp3
Podcast (re-encoded by iTunes): http://council.cio.com/podcast/temp3.mp3
Music MP3s that aren't working for me:
http://council.cio.com/podcast/findyouregone.mp3
http://council.cio.com/podcast/findyourehere.mp3
http://council.cio.com/podcast/youvideoversion.mp3
Music MP3 that is working:
http://council.cio.com/podcast/twoareone.mp3
(Oh, and ignore my comment earlier that this mp3 stopped working. I got confused back there with all the various tests... This file does play fully. The player also waits until the file is fully downloaded before starting to play... As opposed to the others where the player starts and ends playing before they are downloaded completely.)

HT3775 For some reason my QuickTime player has stopped playing all my .avi movies, I can't seem to upgrade and it doesn't offer any solutions except that it may need additional software but not what or where to obtain it from? Help most of my movie are in

For some reason my QuickTime player has stopped playing all my .avi movies, I can't seem to upgrade and it doesn't offer any solutions except that it may need additional software but not what or where to obtain it from? Help most of my movie are in .avi!!

Google 'Perian' and 'Flip4Mac' — these are the extensions that will make QT play other file formats.
However, a simpler solution is just to abandon QT in favour of the free, open-source player VLC, which plays just about everything natively without further downloads.
Download the free VLC Player from here:
http://www.videolan.org
Plays just about everything, including avi & mpg, without add ons.

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Hello,
I have a weird problem.
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Greetings,
K.

I have this exact problem too. No ideas on a fix though.

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Which OS X is installed on your Mac ?
Click the Apple () menu top left in your screen. From the drop down menu click About This Mac.
The version is noted there.
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I have the exact same issue. I'm running Mavericks. My friend that has Mountain Lion has no issues.
Although I thought all it was doing was cutting off 4 frames in the front. But it sounds like you're saying it shifts the whole track by 4 frames, which is even worse!
Apple, fix this, please!

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We have had to restrict the installation of Quicktime on our systems.
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Each user account can set their own preferences for QuickTime browser playback.
QuickTime Control Panel/Advanced/MIME Settings allow you to change those that will open via the QT browser plug-in.
If your page code is "sloppy" and you directly link to the audio files then you may get a wide vary of responses from the viewing browser. Some users will download the file while others may get a QuickTime playback in a "new" window.
Post a link to your page and we can view the page source code and help you with a solution.
Radio made America! I listen daily.

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I migrated a friend’s iTunes library from a Win Vistamachine to Windows 7 Home Premium. Not sure what version of iTunes he had onthe Vista setup, but it’s 10.5.1 on the new machine. In the process, I backedup the sizable (6,000+ songs) iTunes library to an external hard drive, andrestored it to the new Win7 machine.
Now about 10% of his songs will start playing and at randomtimes, will skip to the next song without completing.
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Locate     the song in Windows.
Copy     it to the desktop (or another safe spot)
Delete     the song from iTunes, selecting the option to remove it from the hard     drive.
Cut     the song from the desktop and paste it back in the folder where it came     from
In     iTunes: File>Add Folder to     Library… Navigate to the folder and add it.
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I have deleted the com.apple.iTunes.plist as suggested inother articles, but this did not help.
Any help is appreciated.

Try working through the 5 R's of troubleshooting to rule out the possibility of a software glitch or corrupted data.
http://www.apple.com/support/ipod/five_rs/
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B-rock

Quicktime not playing any videos!

So here's the issue. Quicktime just isn't playing videos. Used to, suddenly stopped working. I'll open a video file, QT will launch, the window for the video comes up, but all i get is black screen, play icon switches to pause icon for about a second, then it goes back into a paused mode. Clicking play again does nothing. Video works fine on VLC, and quicktime video is playing fine in browsers (on Apple site, for example). What gives? No software updates coming up for QT.

Doesn't Quicktime automatically covert and play videos?
Not for formats it doesn't support, no. While QuickTime can play some AVI-format videos (AVI is just a container format and may use any number of different codecs), it can by no means play all of them, and XVID is not a supported codec in QuickTime. I'm not aware of any XVID plugin for QuickTime for Windows available at this time (the XVID consortium says that they're working on QT support, but no details have been made available as to timeframe), so you'll probably need to use some other player such as VLC Media Player to play your XVID AVI content.
Regards.

QuickTime stops playing

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