Quicktime player just won't play .mov files after Mavericks update....WHY?????

My ProRes files won't play smoothly in QT player (10.3) anymore

I run the latest version of Mavericks on my iMac. All softwares are updated

We got another i Mac here, exactly the same, same apps except FCPX and adobe Premiere. The ProRes movies work fine with QT 10

Unfortunately, ProRes is a "Pro" codec editing codec and not normally targeted for simple "playback" or "file distribution" purposes. Therefore you must take into consideration both the target encoding settings and the media player, as well as, the CPUs used on both of your systems, their clocking speeds, the number of apps/procedures/threads active on both systems along with the type of drive used for playback and its interface. I.e., there is a big difference between an SD ProRes file trying to play data at 50 Mbps and and HD file encoded at 250 Mbps. For example here is the test of my oldest RAID assembly using a FireWire interface and my newer RAID using a ThunderBolt interface:

Speed Test for FireWire RAID

Speed Test for ThunderBolt RAID

As you can see from the above images, there can be quite a difference on the same platform using the same OS and the same app but accessing different storage drives alone. Therfore, to really answer your question, you would have to compare all aspects of both systems in full depth, as well as, provide more info about the target test files to better understand what the most reasonable expectations might be here.

greetings mr. walker,

obviously, people have different priorities in life. by your own admission however:

Therfore, to really answer your question, you would have to compare all aspects of both systems in full depth, as well as, provide more info about the target test files to better understand what the most reasonable expectations might be here.

frankly, if you think the average working adult has the time to perform the tasks you're suggesting and outlined, you're more delusional than you realize. that the computer world has created an obsessive atmosphere within societies today that mostly create jobs for itself through planned obselence and forcing a learning curve on humanity that further establishes social divisions is what concerns me most.

i've never been a proponent of terms like 'nerd' or 'geek', but have a better understanding of them since reading your posts mr. walker.

obviously, people have different priorities in life.

Obviously. It is also obvious that some people come here seeking help while others come here to merely heckle and jeer. Since you have yet to indicate that you youself have any sort of a problem, have already indicated that even if you did have a problem you would not bother to contribute any useful information towards its solution, and have yet to make any suggestions, recomendations, or offer any solutions of your own, I must conclude that you here to simply express unsolicited opinions having no bearing on the original or subsequent issues presented.

by your own admission however:

Therfore, to really answer your question, you would have to compare all aspects of both systems in full depth, as well as, provide more info about the target test files to better understand what the most reasonable expectations might be here.

The above response was directed to an individual having an issue which could be caused by any one of many causes or a combination of several—i.e., anything from over targeted settings on an underpowered system to data bottlenecks due to too many simultaneous activities in progress to software/hardware conflicts/differences on the two systems being compared. If you feel qualified to solve this individual's problem without additional, more specific information, then do so at this time and dispense with your gratuitous comments.

frankly, if you think the average working adult has the time to perform the tasks you're suggesting and outlined, you're more delusional than you realize. that the computer world has created an obsessive atmosphere within societies today that mostly create jobs for itself through planned obselence and forcing a learning curve on humanity that further establishes social divisions is what concerns me most.

i've never been a proponent of terms like 'nerd' or 'geek', but have a better understanding of them since reading your posts mr. walker.

Fortunately many people are more willing to participate in the "solution" process than you. So why don't we allow them to make up their own minds regarding how much time and effort they are willing to invest in solving their problems or at least grant them the right to make their own decisions.

10mseconds??? look buddie, your dvd help section contains VERY little "help" info, repeated attempte to diagnose problems with no supporting help info is nothing more than an exercise in futility.!

10mseconds??? look buddie, your dvd help section contains VERY little "help" info, repeated attempte to diagnose problems with no supporting help info is nothing more than an exercise in futility.!

Am somewhat confused by your comment or question. This forum deals with QT 7 and QT X issues—not the making or playing of DVDs—and is a user-to-user help area and not a direct line to Apple. If your issue is the making of a DVD, you may want to open a topic in the iDVD or DVD Studio Pro (Final Cut Studio) forums. If your issue is with the playback of DVD content, then it appears that there is no specific forum for this app. (I.e., it appears that others having DVD playback problms are posting to either platform or OS specific forum areas. You could do the same or use the APPLE PRODUCT FEEDBACK web page to open a DVD Player feedback form and report your problem, request an app enhancement, or possibly even report the fact to Apple that there is no DVD Player online Apple Support Community available for use and that Apple may need to expand their "DVD Help" area as you indicated above.)

As to the "10 seconds" reference previously made in this forum, if you read the entire topic you will find that is was the length of time it takes to open a video file (not a DVD or VIDEO_TS folder) in a third-party video file information utility and look for "obvious" codec and/or file container issuses that may prevent the video file from opening and/or playing in the QT X and/or QT 7 player apps.

Then what?

Looking at all these posts, I can relate to the frustration. There are no solutions here. What's the purpose of going through all the failsafe checks with the video files when we know what's broken is the player. It's NOT the lack of codecs on our system. Why is the animation codec gone? Why is Apple just disregarding the only lossless codec out there? It seems like they want us to go ProRes which isn't lossless. Now you can't use any video with alpha in Keynote. ProRes 4444 with alpha channel is not recognized. We used to use Animation +. Then there is trying to play your regular average H264 video on Quicktime 10.3 Nothing but stuttering audio. It's soooo broken. Unless Apple gets their heads out of their *****, you'll have to use Quicktime 7. The version when things were better.

First of all, "I" and i belive "WE" all want to thank Jon Walker for actualy CARE to answer our serious or silly questions.

Second, we are not tech geeks and to tell you the truth we dont want to be. We dont want to know our videos from what codec are made, we dont want to know there bitrate, and surely, in the year 2014 with fast HDDs, SSDs and RAIDs we dont want to see bars loading up untill something starts playing.

We ALL ask the same question actualy.

"Why untill now EVERYTHING was PLAYING (with diferent codecs that we didnt know of, with diferent bitrates that we "again" didnt know of, with all that Gigabites of movies, funny videos, random downloads from the net that we didnt make ourselves to remember the codecs that we used, and even pictures or PDFs) and now DONT."

I'm 100% sure that the answer to that, fills a line if not less, not 10 or 20 that you give us. And then again, if you dont know it, a simple "i dont know" will do. We dont judge you, our problem is not with you, is with Apple.

You are just a helping friend.

So, if you, or someone else, is going to respond to what im writing, remember we dont want 20 lines of tech, we want one thing, THE TRUTH.

We ALL ask the same question actualy.

"Why untill now EVERYTHING was PLAYING (with diferent codecs that we didnt know of, with diferent bitrates that we "again" didnt know of, with all that Gigabites of movies, funny videos, random downloads from the net that we didnt make ourselves to remember the codecs that we used, and even pictures or PDFs) and now DONT."

I'm 100% sure that the answer to that, fills a line if not less, not 10 or 20 that you give us. And then again, if you dont know it, a simple "i dont know" will do. We dont judge you, our problem is not with you, is with Apple.

You are just a helping friend.

So, if you, or someone else, is going to respond to what im writing, remember we dont want 20 lines of tech, we want one thing, THE TRUTH.

The file/codec combinations you are trying to play are no longer QT X Player or QL supported under Mavericks.

Thank you Jon.

And to make things clear, now, Apple desided that 80% of our files "are no longer QT X Player or QL supported under Mavericks" as Jon sais.

The spacebar preview, the lightweight OS and other small things that made our lives easyer and MAC's what they are untill now, are gone. These things bring Apple and MAC's one step closer to PC's. And we payed a generus amount of money to get them.

And to make things clear, now, Apple desided that 80% of our files "are no longer QT X Player or QL supported under Mavericks" as Jon sais.

It would be more accurate to say that Apple, like other major video codec software deveopers (e.g., Microsoft, DivX, etc.), has for the last decade been actively moving away from the use of multiple video codecs each of which has a single, primary specialized use to a single, highly efficient and scaleable default codec having multiple home and commercial uses ranging from cellphone video conferencing to Ultra-High Definition (4K and 8K resolution) video for HDTV broadcast, digital camera video recording, AVCHD camcorder recording, BD optical discs, internet streaming, etc. If 80% of your files are no longer compatible with QT X or QL, then it is beacuse you have ignored this transition process. I personally have thousands of videos collected, created, and/or converted over the last eight years (i.e., since the introduction of QT and the 5th Generation iPod) and they all remain fully compatible with QT 7, QT X, QL, and OS/IOS devices even under Mavericks because I specifically target them for this compatibility. Apple has provided you with the tools to maintain this compatibility but they can't force you to use them.

Maybe I got lucky or did something on export of my vid that worked well with my QT before and after switching to Mavericks, but I right-clicked to "Open With" my file in QT and it did an automatic conversion for my .mov file. And then I resaved the file and it kept my export vid settings from premiere:

Apple ProRes 4444, Linear PCM, Timecode

color profile: SD (6-1-6)

audio channels: 2

Mainly just the Apple ProsRes settings is all I can say is the same

Not crazy savvy with the settings from my vid, but know some. This was my experience.

hi, i am facing the same problem. all videos played fine on lion before the upgrade. now when i try play them in iphoto, a grey screen appears. opening quicktime player doesnt work either so i think there lies the problem in quicktime somehow. they DO play tho when i attach them to an email and play them within the email!

and i truly do not believe that the video format or codes are old, i have a brand new camera and it can't be that theyre not supported. so if so many people are having this problem, i believe the problem lies in mavericks! can apple please solve this asap? i would downgrade immediately back to lion if i made a backup right before upgrading...

Jon, the problem is merely in iphoto! the new quicktime can play the videos no problem - i copied the videos to an external harddrive and then opened them iwth the new quicktime and they play! they do not play in iphoto hough when i just click them - like they used to do in all old iphotos. this is surely a flaw by apple that must be fixed!