QuickTime X not playing .mp4s

One computer plays the .mp4 fine in QuickTime X, the other only plays .mp4s in QuickTime 7.... Additionally, on the machine that cannot play .mp4s in QuickTime X the Finder's preview function (press the space-bar) doesn't work. Nothing useful in /var/log/system.log. Anyone have any ideas on how to fix this?

applescott wrote:
I have the same issue - *is there any solution???*
Can you tell us what troubleshooting efforts you have tried to correct your issue?

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Why will quicktime 7 not play mp4 from windows

So I made a video with an H.264/mp4 format using a program called Lightwave on Windows 7. When I transferred this file to quicktime 7 on a mac for a presentation, the first image looked fine for about 3 seconds, then the colors were all changed around and faded. However, when I went back to quicktime on windows 7, it works just fine. Does anyone have any suggestions?

Perhaps this will help:
http://answers.microsoft.com/en-us/windows/forum/windows_xp-files/windows-cannot -find-cwindowssystem32rundll32exe/664c5b59-515c-472e-a872-a41f3e0562c1
Regards.

Safari will not play .mp4 movies

I upload a .mp4 movie to my server and Safari cannot play it. It displays a mass of numbers and such.
I found an article online that says to add a .htaccess file to my server at the, infamous, "root level"... what's this guy smokin'??? Could this possibly work? Has anyone had a similar experience with Safari not playing .mp4 videos? (They play just fine in QT Player)
Thanks

If you are having problems playing MPEG4 video in Quicktime 7.4 (and Apple are aware that some users have had such problems) you should carefully check in
/Library/Quicktime and
/Library/Internet Plug-ins and
Home/Library/Quicktime
to check whether you have any third party plug-ins that are not completely up to date.
Current versions of Flip4Mac and DiVX and Perian do NOT cause failure alone or in combination. However the one SPECIFIC extension that ALWAYS causes the failure alone or in groups is 3ivxMediaImp. All other 3ivx extensions DO work. Remove only that ONE SPECIFIC extension.
Please try this and see if it fixes your problem with QT Player, the QT Firefox Plugin, and iTunes not playing MPEG4 files (including mp4 files).
Older 3ivx and DivX components are often incompatible with new QuickTime versions and are, in many cases, obviated by component packs like Perian.
This is not the only explanation for issues with MPEG4 file playback in QuickTime 7.4 and later, however. The issue with videos from democracynow.org and others, for instance, is the result of that content not complying with MPEG4 standards (namely that they use bogus track dimensions). QuickTime had previously ignored invalid track dimensions but this was changed in order to support properly authored anamorphic content.
The recent update to QT 7.4.1 has fixed a number of issues but some problems are unavoidable when working with non-standards compliant content. The standards are important for many reasons including keeping hackers from manipulating improperly coded web pages.
However, there is a workaround (also the basis for why those files will still play in iTunes): there are a few ways to trick QuickTime into ignoring the invalid track data. For instance, rename the files .3GP and they'll show up just fine.
Post back if you want a list of the plug-ins you should have in order to play pretty much anything in Quicktime.

I am using OS 10.7 Lion. Quicktime will not play avi files. One support forum gave 2 links to get them but I got a 404 error. Can anyone help?

I am using OS 10.7 Lion. Quicktime will not play avi files. One support forum gave 2 links to get the proper codecs but I got a 404 error. Can anyone help?

You can also use VLC
http://www.videolan.org/vlc/download-macosx.htm
It woks very well, can read almost anything, and also lets you do conversions to other formats.

HT3775 For some reason my Quicktime will not play a mpg file. It says that my computer does't have the proper codec to support the file. What can I do to fix this problem?

For some reason my Quicktime will not play a mpg file. It says that my computer does't have the proper codec to support the file.

The info in this thread should help you - https://discussions.apple.com/thread/3648239?start=0&tstart=0

HT3775 This info is not helping. I am using VC500MAC digital video conversion system to record old VHS tapes to computer. The file is .mov, but quicktime is not playing it back. Help, please.

This info is not helping. I am using VC500MAC digital video conversion system to record old VHS tapes to computer. The file is .mov, but quicktime is not playing it back. Help, please.

Sorry for this question. Can you use this device with Vlc or QuickTime? Does skype support it? Is this device supported only by its own software?
I need a device that can work with my own software. My software can work only with a QuickTime supported device.
Thanks if you will reply to me.

HT3775 Hi...I have the OS X v10.6.8 but my QuickTime is not playing .mov files. How can I fix this?

Hi...I have the OS X v10.6.8 but my QuickTime is not playing .mov files. How can I fix this?

Hi...I have the OS X v10.6.8 but my QuickTime is not playing .mov files. How can I fix this?
Depends of the specific kind of file you are trying to play. MOV refers to the file container. Any data compatible with the system used to create the file can be placed in an MOV file. If you don't have the same codecs available on your computer to play back the file or if your version of the QT player does not expect expect the encoded data to be in an MOV file container, then it cannot/will not play the file. Use the Finder Info window, media player Inspector/Information window, or a dedicated utility to determine what compression formats were used to create the MOV file and then install the required codec(s) if available.

Help major issue, quicktime will not play my HDV movie?

I have a major problem here.
I have a movie i shot and edited when I was at university using Final cut pro and HDV cams.
I need to show this movie on my macbook pro, but I purchased final cut express, and have just found out my Quicktime does not play this file.. the screen is just black?
I assume I need a HDV 1080i50 codec for quicktime??? is this correct?
Where can I get it?
I intend to give a presentation was going to use OpenOffice or use my Quicktime just for moving image
Any suggestions?
Regards

You were given a video that can only play in Final Cut Pro. Final Cut Express doesn't have that codec.
You going to have to go back to whom ever gave you that video and have them export the video to a codec that either Final Cut Express can play or a codec that Quicktime can play.The later would be better because, if a video can play in Quicktime it can play in Final Cut Express.

Quicktime 7.7.4 will not play mp4 video

I have several recorded videos saved in mp4 format that will not open in Quicktime. The audio plays, but the video is only a black screen. I have one mp4 file that I recorded a few days before the others that will open in Quicktime. All the files open in VLC, DivX, Adobe Premiere Pro 5.5, and Windows Media Player. I am using Windows 7 and I need to import these videos into Photoshop CS5.5 extended which it will not do if the files won't play in Quicktime. I've tried just about everything including re-recording, but my recording will only save in mp4 or flv. I have also uninstalled and re-installed quicktime, photoshop, and my recording device.
The first two images are from files that will not play in Quicktime, no picture only sound. That last image is from a file which will play; both sound and picture.

I have several recorded videos saved in mp4 format that will not open in Quicktime. The audio plays, but the video is only a black screen. I have one mp4 file that I recorded a few days before the others that will open in Quicktime. All the files open in VLC, DivX, Adobe Premiere Pro 5.5, and Windows Media Player. I am using Windows 7 and I need to import these videos into Photoshop CS5.5 extended which it will not do if the files won't play in Quicktime. I've tried just about everything including re-recording, but my recording will only save in mp4 or flv. I have also uninstalled and re-installed quicktime, photoshop, and my recording device.
The first two images are from files that will not play in Quicktime, no picture only sound. That last image is from a file which will play; both sound and picture.
Your video data rates are virtually nonexistent. (I.e., a "normal" quality AAC stereo track for a video file is typically recorded with a sampling rate in the 44.1 KHz at 128 Kbps to 48 KHz at 160 Kbps range.) As you can see in the inspector images the total audio plus video data rate allocated for your files are all little more than that required to support a "normal" stereo audio track. Recompress the files using a more realistic video data rate. Try something in 1.25 Mbps to 2.50 Mbps range as a starting point and determine the minimum level of quality you can live with here. (I.e., a typical VGA SD iPod file is normally compressed with a video data rate on the order of 1.5 Mbps to 1.7 Mbps.)

Embedded QuickTime files not playing sound

I'm having trouble getting older, embedded QuickTime files to play properly. Many of them do play but without sound.
An example:
The embedded QuickTime files in questions 6 and 10 here...
http://www.linguistics.ucla.edu/people/schuh/lx001/Web_Quizzes/Quiz_07/07web.htm l
...do not play sound.
When viewing the files directly...
Example: http://www.linguistics.ucla.edu/people/schuh/lx001/Web_Quizzes/Quiz_07/07_Quiz_m edia/0706_split_brain_red.mov
...the sound plays properly.
I have done a bit of playing around on a few different machines and have found the following:
2009 MacBook Pro: video and sound play correctly in Safari and Firefox
OS X: 10.7.5
Safari: 6.1.6
Firefox: 36.0 with QuickTime Plugin ?
QuickTime 7: ?
QuickTime X:10.1
2009 Mac Mini: video and sound play correctly in Safari and Firefox
OS X: 10.8.5
Safari: 6.2.3
Firefox: 33.1 with QuickTime Plugin 7.7.1
Firefox: 36.0.1 with QuickTime Plugin 7.7.1
QuickTime 7: 7.6.6
QuickTime X: 10.2
2011 Mac Mini: video and sound play correctly in Safari and Firefox
OS X: 10.9.5
Safari: 7.1.3
Firefox: 31.0 with QuickTime Plugin 7.7.1
Firefox: 36.0.1. With QuickTime Plugin 7.7.3
QuickTime 7: 7.6.6
QuickTime X: 10.3
2011 iMac: no sound in videos, improper display of video with menu in both Safari and Firefox
OS X: 10.10.2
Safari: 8.0.3
Firefox: 36.0.1 with QuickTime Plugin 7.7.3
QuickTime 7: 7.6.6
QuickTime X: 10.4
2011 Mac Pro: no sound in videos, improper display of video with menu in both Safari and Firefox
OS X: 10.10.2
Safari: 8.0.3
Firefox: 36.0.1 with QuickTime Plugin 7.7.3
QuickTime 7: 7.6.6
QuickTime X: 10.4
Is this a Yosemite issue? Not being able to play older QuickTime 7 files properly? I'm not sure what else the issue could be since everything seems to work fine in 10.7, 10.8, and 10.9 (unfortunately, I have been unable to test this in 10.10 or 10.10.1). Maybe I'm overcomplicating a simple issue? Any help would be greatly appreciated.
Thanks!

Is this a Yosemite issue? Not being able to play older QuickTime 7 files properly? I'm not sure what else the issue could be since everything seems to work fine in 10.7, 10.8, and 10.9 (unfortunately, I have been unable to test this in 10.10 or 10.10.1). Maybe I'm overcomplicating a simple issue? Any help would be greatly appreciated.
Some very interesting observations which peaked my own curiosity due to on-again, off-again nature of the playback. I suspect this is either a "bug" or represents content handling changes that are currently in the process of "evolving." Not a web site programmer so I used iWeb to run some contrast-comparison tests on how audio was handled by the plug-in software when directly accessing the content by its URL and via the page embed strategies. My results mirrored yours in that:
1) All legacy codecs tested (A-Law, IMA, QDM2, QPV, and u-Law) in an MOV file container played correctly in the QT 7 player.
2) The same files all played correctly when content was accessed by the plug-in software directly using the URL reference.
3) None of the files containing legacy audio compression formats would play audio using the plug-in software using a web page embedding strategy.
4) An MP4 (H.264/AAC) version of you original clip played correctly in all instances.
5) Replacing your QDM2 audio track with an AAC audio track in the original MOV file allowed the file to play correctly in all instances.
Based on these observations, I suspect the problem is in the way the software is currently programmed to handle (or rather ignore) the embedded strategy content. However, as you indicated, it is probably time to update your files. Not only did the H.264/AAC version of your original file play in all instances, but it used less than 45% of the file space/bandwidth for the settings I employed as compared to your original "0706_split_brain_red.mov" original file.

Latest version of itunes does not support Quicktime can not play movie from library

Latest version of Itunes does not support Quicktime. I can not play movies out of my itunes. Please fix

I don't usually download video from the iTunes store. I had a couple of long plane rides coming up and thought I might have time to watch the Stanford IOS7 programming class. On the plane I discovered this issue which has gone unaddressed since 2011 and has been worsened in Mavericks. in 2011 the advice was to open iTunes' get info pane and click run in 32 bit. That worked at least for some people. In Mavericks, iTunes will not launch in 32 bit.
For the files you can locate in the finder ( mine are at
/Users/raine001/Music/iTunes/iTunes\ Media/iTunes\ U/Developing\ iOS\ 7\ Apps\ for\ iPhone\ and\ iPad/1.\ Class\ Logistics\,\ Overview\ of\ iOS\,\ MVC\,\ Objective-C.mp4
) you can click on the file in the finder and it will launch in QuickTime. For some reason on the plane I could see the first lecture in the iTunes view but, although I could see all the other lectures in the finder, I could not see the first one.
Ah well, maybe some other year I'll think about getting up to speed on ios7. Heck, maybe by then they will design a decent user experience.

Quicktime is not opening .mp4 files anymore

Hi, my quicktime stopped opening .mp4 files I record with my cellphone, that's pretty strange because I thought it was a problem with the phone but I can open them everywhere but in my Mac. This happen after I updated quicktime.
Does anybody knows what could it be?
Thanls

I am having a similar problem. .mp4s are not playing. Used Handbrake to create an .mp4 file. It plays fine on every system but the one I need it to play on. Quicktime 7 won't play any video, just a white screen like it is missing a codec. I haven't had this problem before, and nothing has been recently installed that would effect Quicktime. Is there an easy way to reinstall the codecs? I've reinstalled Quicktime several times with no effect, recreated the .mp4 file several times, everything else plays fine. Any ideas?

Safari will not play mp4 over HTTPS

Hello,
I have a file, sample.html, which contains only the following code:
<html> <body>
<video width="600" autoplay loop poster="placeholder.jpg">
<source src="sample.mp4" />
</video>
</body> </html>
The mp4 file referenced is the one downloaded from here: http://support.apple.com/kb/HT1425
When I use Safari to access my page via http://myserver.com/sample.html the video plays without problem.
When I use Safari to access my page via https://myserver.com/sample.html only the placeholder image is displayed.
Using Safari 7.0.6 on Mac OS X 10.9.4
I have used http://www.sslshopper.com/ssl-checker.html to check that SSL is correctly configured for my domain and it reports no problems.
How can I make the video play in Safari when accessed over https?
Thanks in advance,
Andy

If you are having problems playing MPEG4 video in Quicktime 7.4 (and Apple are aware that some users have had such problems) you should carefully check in
/Library/Quicktime and
/Library/Internet Plug-ins and
Home/Library/Quicktime
to check whether you have any third party plug-ins that are not completely up to date.
Current versions of Flip4Mac and DiVX and Perian do NOT cause failure alone or in combination. However the one SPECIFIC extension that ALWAYS causes the failure alone or in groups is 3ivxMediaImp. All other 3ivx extensions DO work. Remove only that ONE SPECIFIC extension.
Please try this and see if it fixes your problem with QT Player, the QT Firefox Plugin, and iTunes not playing MPEG4 files (including mp4 files).
Older 3ivx and DivX components are often incompatible with new QuickTime versions and are, in many cases, obviated by component packs like Perian.
This is not the only explanation for issues with MPEG4 file playback in QuickTime 7.4 and later, however. The issue with videos from democracynow.org and others, for instance, is the result of that content not complying with MPEG4 standards (namely that they use bogus track dimensions). QuickTime had previously ignored invalid track dimensions but this was changed in order to support properly authored anamorphic content.
The recent update to QT 7.4.1 has fixed a number of issues but some problems are unavoidable when working with non-standards compliant content. The standards are important for many reasons including keeping hackers from manipulating improperly coded web pages.
However, there is a workaround (also the basis for why those files will still play in iTunes): there are a few ways to trick QuickTime into ignoring the invalid track data. For instance, rename the files .3GP and they'll show up just fine.
Post back if you want a list of the plug-ins you should have in order to play pretty much anything in Quicktime.

Quicktime.mov not playing back from website

iWeb 3.0.4
I downloaded three .MOV to my site. One is playing back ok, the other two are only displaying the QuickTime symbol. I did empty the browser cache, but to no avail. Did check with server and the .MOV files are in the html folder, but not playing back. I also re-uploaded the questionable .MOV files, but it still does not let me open the files on my site. site name : bodoholst.com
thanks in advance

All three movies play OK for me.
The pages are slow to load as this method of adding them to the pages requires the movie file to download with the web page.
If you are happy to depend on viewers having the QuickTime plugin, this is a better way...
http://www.iwebformusicians.com/Website-Movie-Video/Poster-Movie.html
So that everyone can see your movies you really need to have flash fallback since there's still a lot of people around who don't have the QT plugin installed...
http://www.iwebformusicians.com/Website-Movie-Video/Flow-Player.html
http://www.iwebformusicians.com/Website-Movie-Video/Fallback-To-Flash.html
http://www.iwebformusicians.com/Website-Movie-Video/JW-Media-Player.html

Quicktime 10 not playing RECENT iTunes m4v files

Hello All,
I purchase a lot of movies and TV from iTunes. I always watch them with Quicktime.
After upgrading to iTunes 10.1 on my Mac Pro Nov 17, Quicktime 10 stopped playing RECENT iTunes purchases. No movies downloaded since mid September will play. There is no audio; the window is black; play mode lasts a couple of seconds and then stops. Older ones play normally.
Anyone able to confirm this on your systems?
Big thanks, Brett

Hi.
I have the same problem. After several e-mails back and forth between me and iTunes Store Support I'm still where I started out with this problem. I was asked to reinstall iTunes as well, and I did. No change at all.
I have the latest iTunes and Quicktime installed. I like to save the video files like movies, tv show episodes and digital copies on my external hard drive and delete some of them from my itunes/mac to free up some space. I just play the files from my hard drive on Quicktime, so I won't have to import them into iTunes again.
However, I've noticed that any video file downloaded from iTunes after November 1st won't play in Quicktime. The tv show episodes I downloaded prior to Nov 1st play just fine, but if they were downloaded after Nov 1st, no matter what date they were originally released on, as long as I downloaded them after Nov 1st 2010, they won't play in Quicktime. Black screen, no sound.
This is really annoying as I buy lots of Blu-ray movies, and some of them comes with Digital Copies. I have several season passes too, and the latest episodes won't open in Quicktime either. I've tried everything I can think of, everything the people working with iTunes Store Support told me to do and still nothing.
If anyone finds a way to fix this, please let me know. I would be very grateful for any help fixing this problem.
I'm kinda glad I'm not the only person with this problem. That proves there's something wrong with iTunes, the OS, Quicktime or something else, probably Apple related. On the other side, I'm sorry you guys are having this really annoying problem too.
Sincerely,
gleek2009
edit: Btw, I just wanted to say that all those video files purchased/downloaded after Nov 1st still play fine in iTunes, just not in Quicktime. If that makes any difference.
Message was edited by: gleek2009

QuickTime X not playing .mp4s

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