Quicktime on lion won't play

i recently got lion for my 2009 mac that i've always kept up to date with software updates and so forth. well when i go to play any movie in a clearly formated avi it says that quicktime doesn't support this video because it cant find the codec or something like that but before lion it would work without a hitch... any ideas how to correct this problem?

While we all have MacBooks in this forum most of us don’t have Lion. There's a Lion Support Community where everybody has Lion. You should also post this question there. https://discussions.apple.com/community/mac_os/mac_os_x_v10.7_lion
And the QuickTime community https://discussions.apple.com/community/mac_os/quicktime

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TS3961 Quicktime in Lion won't Play MPG/MPEG-2 format Video

I have OS X Lion but quicktime still says "QuickTime Player can't open "M2U02230.MPG" because a required codec isn't available." Does anyone know what codec is needed? Apple says that Lion will play MPEG-2/MPG format and MPEG-2 Playback Component is no

No, Quicktime does not natively play muxed formats.
For that you need mpegStreamclip:
http://www.apple.com/downloads/macosx/video/mpegstreamclip.html
which is free, as well as the the Apple mpeg2 plugin :
http://www.apple.com/quicktime/mpeg2/
which is a mere $20.

Quicktime V7.4 won't play movie rentals

I upgraded to QT 7.4 and now iTunes won't play my movie rentals. It just somes me the movie with no sound. I have even gone so far as to uninstall 7.4 and install 7.1, but then the movie won't play at all, just goes to the iTunes store and then stops, doing nothing. Can anyone help? Much appreciated.
Larry

I was having the same problem but just found a solution for IE. You need to make sure the QuicktimeCheck Class addon is enabled. Tools>Internet Options>Programs>Manage Addons. (Addons currently loaded in Internet Explorer)
I am not sure how this got disabled but enabling it got rid of the "Get the latest Quicktime" message and allowed me to view trailers once again.

Quicktime Player Pro won't play any movies?

Ever since I restored my computer about a month ago, my Quicktime Player won't play any video formats correctly. .avi files don't play anymore, and mp4 files only play sound with the screen black. Then when I try to close the application, I get the pinwheel for a long time, thus making me force quit every time. How can I fix this so it can play movies correctly?
(I'd also like to know how to get it to play .mka format movies as well)

Courtney,
There are a lot of possible CODECS used with .AVI file, not all of which are available for the QuickTime player.
If you just want to play the AVI files use the free VLC media player found at http://www.videolan.org/vlc/

Quicktime Slideshow Movie Won't Play Music

I created a slideshow using my iPhoto 5.0.4 then exported it to a movie as Quicktime, with music. It plays beautifully on my machine. I burned it to a CD and sent it to someone with the identical Mac (a PowerBook G4) and he couldn't play it on his SAME version of QuickTime. As he explained it, his Apple kept sending him to iTunes to search for the music, which it claimed it couldn't find even in the Music Store (odd, since I bought the music from my Music Store).
Similarly, another person trying to view the same Quicktime movie on a PC, using a freshly downloaded of version of Quicktime, reported that the slideshow played but with NO music.
Any ideas? Thanks in advance!
Anne

Thanks for the explanations. I am trying to get my brain around the notion that if I had a CD of my own downloaded to iTunes, I could make all the copies I wanted and use them however I wanted, but a legally purchased song that iPhoto has no objection to my exporting to a QT movie is outside the rules!
That said, the explanation makes technical sense to me, so thanks!

Quicktime and iTunes won't play anything, require computer restart.

Since installing Lion and the latest iTunes, I cannot consistently play songs or videos in iTunes (or Quicktime, for that matter). I hit the play button and it changes to a pause button, but the file doesn't progress past 0:00. I try pausing and restarting the song (or movie) and it doesn't play. This occurs both with songs on my computer and in previews from the iTunes Store. Restarting my iMac seems to fix it, but the problem returns after a period of use. Quitting and restarting iTunes does not fix the problem.
It seems that I need to reinstall Quicktime and/or iTunes (not sure how), but I'm open to other suggestions. Any help would be appreciated.

jmaybee,
You need to go get a program called Pacifist 3.2.2 (it's shareware but you can use it for free - I cannot say enough of how great this program is, it has saved my skin more times than I can count)
http://www.charlessoft.com
Then get the Snow Leopard disk that came with your system and put it in the optical drive and let it mount.
Using Pacifist, use the "Open Apple Install Discs" button, select the Snow Leopard disk and let it read the package installers. This may take some time, as it's got to read the DVD and pull up all the installer .pkg files..
When Pacifist is done, you'll see something that looks like this:
http://home.comcast.net/~foodandart/MacForums/PacifistSnowLeopardQT.jpg
Dig down into the installer packages thusly:
Contents of OSInstall.mpkg
   Contents of EssentialSystemSoftware
      Contents of EssentialSystemSoftwareGroup
         Contents of Essentials.pkg
            Applications
               QuickTime Player.app
Select the QuickTime player to highlight it, then you just hit the large arrow at the upper left corner of the Pacifist window (sorry for my black Snow Leopard scheme making things hard to see) and it will ask you if you are certain and also to backup files (why? they're gone already!) and it will install the QuickTime Player to the default location in your Applications folder.
I *just* tried this with my own system and tossed my original copy of QTX on the Desktop and the new install works perfect.
There you go..
Regards,
Deb.

Quick Time (Mountain Lion) won't play .AVI files.

Since all of you probably already know the information I typed in the headtitle, I have a question. So obviously .avi files can not be played on this version of Quick Time that comes with Mountain Lion, but, would buying a Quick Time Pro solve my problem? I'm ready to pay 30$ for the program, but first I'd like to know would it enable me to play .avi and all sorts of other video files? Ofcourse I read it does play all sorts of files including .avi, but I'd like to hear it from somebody who actually uses Quick Time Pro on Mountain Lion. Thanks for your help in advance!
Dino Sertovic
P.S. I already have tried VLC, I use it but that's not the solution I'm asking for. Nor that, nor other programs such as MplayerX. I'm interested only in Quick Time while it never breaks, deinterlaces my footy nice and is very simple and user friendly.

You don't need to buy Quick Time Pro. Quick Time Pro is just a paid add-on to add features to QuickTime Player 7. You don't need the Pro features for just playing. The player in your Applications folder is Quick Time X. QuickTime Player 7 should be in your Utilities folder (which is inside yoir Aplicatioins folder). If it's not there, download it from:
<http://support.apple.com/kb/DL923>
QuickTime Player 7 will play .AVI files if you install Perian
<http://perian.org>
then replace its A52 codec component
<http://www.techisky.com/answers/does-perian-support-ac3-on-mountain-lion-10-8-ho w-to-fix.html#more-120>

Lion won't play .avi or .wmv correctly

I installed Lion yesterday, and suddenly Quicktime can't play the video part of .avi or .wmv files (it can still play the audio). I re-installed Flip4Mac but that didn't fix it. VLC still works, but now I can't view the files in Safari b/c Quicktime is responsible for playing them there.
Any advice on what to do?
Thanks!
Edit: I also re-installed Perian, no changes.

Normaly QuickTime doesn't support AVI or DVIX out of the box,
you need to install some plugins.
but as we all have done an upgrade to lion these plugins aren't compatible with LION ANYMORE.
they'll bring an update asap I suppose.
but in the mean time download this app: http://www.videolan.org/vlc/
It's called vlc player.
It's available on every platform, support airplay plugins, and every fileformat is support cause it's an open source project.
ps: it supports subtittles as you want and .MKV video's aswell.
it uses a lot less Memory then quicktime while watching a AVI movie or 720 p or above.

My quicktime 10.1 won't play movies.

I recently got a Macbook pro OS X Lion and for the past few months have had problems with trying to run movies on Quicktime 10.1. My videos files are usualy .AVI but when I try to click on it quick time opens and then tells me that it can't read the file. Can anyone help? I've search the internet for answer and have tried a lot of differnt solutions that others have had success on (incuding updating Perian and trying to convert the .AVI file to .MOV) yet I still have had no such luck.
Any help is appreciated, Thanks.

Maybe you could try to reinstall the QuickTime?
It's OK to play other videos, right? Actually QuickTime only plays these AVI or WMV files that both the audio and the video were compressed by a codec that QuickTime can recognize. If the audio or video, or both were created using codecs that QuickTime could not recognize, you might get an error.
If tried all the solutions and still have problem to play the videos, then how about turn to the video converter?
maybe a video converter like this http://itunes.apple.com/us/app/avi-converter/id479723316?mt=12 can do a favor for you?

Quicktime 10.0 won't play any of my wmv videos - help please

I get a pop up that says I don't have quicktime installed. Can anybody help? Thx

I assume you normally use the Flip4mac QT plugin to open WMV file. It hasn't been updated so it will look for QT 7 and not find Quicktime Player 7.
The fix is easy:
Control+click on any WMV file. Then select "Get info" from the drop-down menu. Change the "Open with" setting by selecting "Quicktime Player." You may see two "quicktime Players" listed in the drop-down menu, select the one with the new "Q" symbol. That will be the QT 10 Player. Click on "Change All" and now they should all open with the QT 10 Player.
Some feature still won't work with Flip4Mac until it's updated.

QuickTime movie clips won't play in video player

I have movie clips generated by my camera that are in Quicktime format that are in iTunes and iPhoto (playing in both) but will not sync to the iPad because they are in an "unsupported format"
I have a few other QT clips that did sync to the iPad from iTunes, but not all of them will transfer.
What is the problem?

Just because the videos from your camera are Quicktime, doesn't mean they will play on the ipad. Open the videos with Quicktime on your computer and get info, COMMAND+i. Here are the video specs for the iPad:
H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format. http://www.apple.com/ipad/specs/

HELP?! Quicktime movie rendered won't play?

I made a movie in After Effects and rendered it as a quicktime movie with Soren (Soerenson?) compression type. It played on my computer and some friends' both PC and MAC computers. Now I am out of town and trying to play it on a PC that was Quicktime version 7.1.3 installed. the music plays, but the movie is all scrambled with green and blue nonsense, you can't see anything in the movie. WHy would this be? HELP PLEASE!!

Thank you so much, that worked perfectly! Now can you explain to me what that did? Do I need to switch it back for them? So that I know in the future.

Quicktime 7.5 Won't Play Movie Trailers!

Hi:
I'm new to this forum. I'm having trouble with my "Free" Quicktime player. When I go to the Quicktime movie trailer website and click on the HD movie trailer button nothing happens at all and when I click on the normal movie trailer buttons a window pops up/opens that has the words "Get the latest Quicktime". I have the latest Quicktime 7.5
I have been using Quicktime for quite some time now after upgrading from v7.4.5.67 I have NOT been able to play any movie trailers on the Quicktime movie trailer website. I have uninstalled and reinstalled it a couple times to no avail.
What can I do to fix this problem????

I was having the same problem but just found a solution for IE. You need to make sure the QuicktimeCheck Class addon is enabled. Tools>Internet Options>Programs>Manage Addons. (Addons currently loaded in Internet Explorer)
I am not sure how this got disabled but enabling it got rid of the "Get the latest Quicktime" message and allowed me to view trailers once again.

Quicktime 7.2 won't play videos or adds on safari

I installed quicktime 7.2 on to my mac book, and now videos and adds don't show all I get is a Q with a ? mark on it. I'm not that good with computers, but can some Please help me solve this problem?

Quicktime with a ? refers to Flash video.
These are the downloads and the settings you need in order to view/hear pretty much everything that the net can throw at you: The setup described below has proved repeatedly successful on both PPC and Intel macs, but nothing in life carries a guarantee!
Assuming you already run OS 10.4.9 or above and have Quicktime 7.2, and are using Safari 2 or 3, download and install (or re-install even if you already had them) the latest versions, suitable for your flavor of Mac, of:
RealPlayer from http://uk.real.com/player/
Flip4Mac WMV Player from http://www.microsoft.com/windows/windowsmedia/player/wmcomponents.mspx (Windows Media Player for the Mac is no longer supported, even by Microsoft)
Perian from http://perian.org/
Adobe FlashPlayer from http://www.adobe.com/shockwave/download/download.cgi?P1ProdVersion=ShockwaveFlash
In Quicktime Preferences, under advanced, UNcheck Enable Flash, and under Mime settings/Miscellananeous only check Quicktime HTML (QHTM).
In Macintosh HD/Library/Quicktime/ delete any files relating to DivX (Perian already has them).
Now repair permissions and restart.
The world should now be your oyster!
You should also have the free VLC Player from http://www.videolan.org/ in your armory, as this plays almost anything that DVD Player might not.

Quicktime 10.1 Won't Play

I'm having an issue with Quicktime Version 10.1 whenever i load a video of anykind MOV. AVI. WMV. whatever it load up just fine, but when i press play it plays then it stops, so i press play again and it stops again the cycle continues i can't seem to get it to just play the movies. I can click through them and see the parts but when i press play it plays not even a second then automatically pauses. Help would be appriciated.

Found the Answer even though you might not like the result.
Upon looking for every backdoor solution to this issue, There were many areas of this site and other websites saying to just boot into the Recovery HD partition and re-install the OS. About an hour and 30 minutes later after reloading the operating system and it not causing any issues, it fixed the problem.
Quicktime works perfectly. No issues with video playback. No hanging Application nor does it CACHE broken files or anything like that. I would have to say the problem lies in the 'return application to past state' that is built into the operating system that you can turn off but i dont' want to turn that off becuase its a useful tool.
So Re-install of the operating system solved the issue!

Quicktime on lion won't play

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