Posted by Candice Liu to QuickTime, MOV Updated on Dec 6, 2018

QuickTime contains popular codecs such as MPEG4, H.264, DV and JPEG. But downloading additional codecs is deemed as indispensable to make up for the missing ones and have the videos under the compatible formats with QuickTime. Just check out our top list of QuickTime codec you have to download and install to expand QuickTime supported format lists, if you are subject to following playback issues.

1. QuickTime shows you an error message when playing a file with unsupported media: 'The document could not be opened. A required codec isn't available.'
2. After you upgrade to macOS Sierra, you are unable to play MOV files and informed of a message 'Additional software is required for QuickTime to playback this media.' This is because Sierra deleted the QuickTimeMPEG2.component file from /Library/QuickTime.
3. You get a message 'The document could not be opened. The movie's file format isn't recognized' when playing AVI in QuickTime, just because the file is corrupt or a video/audio codec is mission.

Note: When you play video on Mac using QuickTime, the easiest way to solve the missing codec error is to convert video to QuickTime compatible format like MOV, QT, M4v, MP4 with HD video converter for Mac.

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How to downgrade to QuickTime Pro 6 18 comments Create New Account

QuickTime Player 7 Download for Mac OS X v10.6.3 or later QuickTime Player 7 supports older media formats like QTVR, MIDI files and interactive QuickTime movies, on Snow Leopard and OS X Lion. This software also supports QuickTime 7 Pro registration codes. Aug 08, 2013  Apple’s QuickTime player has been the default Mac media player for a long time and is able to open most of the popular file formats. The QuickTime player is also able to open images and audio files and constantly demonstrates its efficiency. Apple QuickTime is part of these download collections: View FLC, View FLI, M3U Player. May 07, 2015  QuickTime Player for Mac, allows the playback of QuickTime movie files (.mov) and lots of other file formats including, audio, still images and graphic files. QuickTime Player for Mac not only delivers crisp quality, but the app is easy to use with a simple interface. Note that this particular.

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Quicktime 6 free download - Sid Meier's Civilization VI, QuickTime 6.5.2 Reinstaller, Apple QuickTime, and many more programs. Reinstall Quicktime 6.5.2 on your Mac. Free User rating.

I just drug a copy of Quicktime-6 to the applications folder from my backup and all the pro features were intact. If I don't need the pro features I use Quicktime-7, if I do, I launch Quicktime-6.
If you have a backup, no need for a reinstall..at least for me..I have the best of both worlds.

Thanks, dragging my backed up copy of Quicktime 6.5.2 Pro to the applications folder running 10.3.9 works great! I appended 6.5.2 to the QuickTime app name before dragging it to my regular drive.

Managed to install quicktime 6 from the download on the support page.
had to use Pacifist to extact the .app bundle from the package.
Seems work just fine with the all pro features enabled :-)

That link didn't work for me, but this one did.

Quicktime 6 Download For Mac

how very strange..try this one

Quicktime 6 Download For Mac Download

Apple moved the installer for QT6, I ahve not found it yet. their description about how the key changed from 6 to 7 is here:
http://docs.info.apple.com/article.html?artnum=301521
I think Apple should offer a discounted upgrade path for those of us who bought Pro for 6, rather than shell out a full 30 for a new key to get same function in 7.
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veteran of Claris, Apple, Netscape and i-drive

Ummm..
When I upgraded my QT 7 Pro on 10.4 to QT 7.0.1, I DID receive an explict warning I would need to purchase a new key and that my old key was now bunk. It asked my permission and warned me before I executed the upgrade.

Find a recent SerialBox and grab the QT Pro key from there. That's how mine is Pro authorized—albeit illicitly, but since you purchased a Pro key in the first place, there would be nothing at all wrong with you grabbing it from there.

'..since you purchased a Pro key in the first place..

..there would be nothing at all wrong with you grabbing it from there'
Huh? You *are* kidding, right? I guess this is where my mileage varies -- I purchased a QT6 Pro license around a year ago, and I wish I had a QT7 Pro license now, but I'm not going to steal one.

You can track the location of your lost phone, trigger a sound to find a missing phone, or remotely lock or wipe your phone's contents if it's stolen. Avp 2 prime download for mac. It also provides remove anti-theft and tracking tools, so you can keep track of your tech. Avira Prime for Mac's central dashboard gives you real-time information on device and service status and lets you add or remove premium services when you like.

I lost all Pro functionality, and had to buy a new key.
The above poster is the only one I've heard of who was warned.
Odd.
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I'm always right and I never lie.

..when I did the initial upgrade to 10.4. However, I WAS warned when I Software Updated to QT 7.0.1 (though it was in tiny print and you had to select QT 7.0.1 in the list to see the warning). Fortunately I saw the hint about keeping your QT 6 app somewhere, so I've still got Pro functionality available.

I also recieved several warnings before installing QT 7.0
(I hate to put a 'me too' post but I just wanted to add some weight to the fact that there were warnings.)

You are not alone. I was warned in the same fashion using Software Update.app. And not just warned once, actually, I believe it was three times.
(D'oh! Just happened to become another me too-poster)..
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Life only demands from you the strength you possess. Only one feat is possible - not to have run away.

When I installed QuickTime 7.0 in 10.3.9 the installer gave THREE explicit warnings that my version 6 pro key would not be valid. First the readme file (which the installer itself displays) clearly stated that QT 7 requires a new pro key; next a dialog box appeared indicating that my current pro key would be invalidated if I continued, which I had to acknowledge with an 'OK'; finally, just before the real installation began, there was an 'are you sure?' message that I had to answer yes to before my QT 6 pro installation was replaced. From my perspective, not only was there warning given and permission asked, the point was absolutely driven into the ground.
As for Tiger and 7.0.1, I cannot say as I had already purchased a QT 7 pro license by the time I moved to 10.4.

Quicktime 6 Download For Windows

I have upgraded to QT Pro 7 (on Tiger) but encounter a complete crash of QuickTime when I use a certain codec.
I have a licence of Sorenson Video Pro 3
http://sorensonmedia.com/solutions/prod/sv3_win.php
Now - when I select the 'Watermark' tab in 'Options' QuickTime CRASHES repeatedly. This happens on my G5 2x2 and on my PB 12. I reported this to Apple and to Sorenson but no feedback at all.
This is pretty annoying because it means I have to start-up from my Tiger backup to encode videos with watermarks (what I always do).
This might be an esotheric problem that does not interest many but I must say the Sorenson support really sucks! They did not reply to any of my three bug reports at all.
Any ideas or tips. Who is to contact to get this fixed? It might be a Sorenson codec problem or a QuickTime flaw.
gfisch

You may have been warned during your install, but during my upgrade from Panther to Tiger, there were no such active warnings displayed about nuking my QTime 6 Pro key.
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veteran of Claris, Apple, Netscape and i-drive

Apple quicktime 6 download mpeg-4

Quicktime Mac Download

I kept the QuicktimePlayer.app from my 10.3.9 install in a different folder, and when I upgraded to 10.4, I could run the old 6.5.2 player with Pro functionality, at least with 10.4 and then upgrading to 10.4.1 -- so the app still works.
If you're already on 10.4, and need to get hold of the app, you should be able to extract it from the QuickTime installer manually using a tool such as Pacifist, or extract it yourself from the installer archive.

Download Quicktime Player For Mac

This is helpful. However, I am not yet ready to move to Tiger. I am in OS 10.3.9. I have QT 6.5.2 Pro. I am about to move up to QT 7 but I want to keep 6 available as well. All on one machine - still in OS 10.3.9.
Any how to install tips? Thanks.