Quicktime does NOT open mp4

Im running Mac OS X Lion 10.8.4.
When I try to open an mp4 or mv4.

Im running Mac OS X Lion 10.8.4.
When I try to open an mp4 or mv4.
Since these file types should be compatible with both QT 7 and QT X players (assuming the MPEG-4/AAC and/or H.264/AAC data was not encoded using a proprietary or hybrid codec and the files are properly terminated), either something is wrong with your computer or the file itself. Post or upload a sample file for examination.

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Quicktime Does Not Open All Movies

I have a video that was made in 1997, stored on a 1.44MB diskette, and now I'm trying to open it with Quicktime. Quicktime simply comes up with a white screen but goes through the automation.
The Type is "MooV' and the Creator is "TVOD". I have never heard of this type or creator. I have tried several different applications that work with videos without success. I know the video is there as some of the video applications show a proper thumbnail image of whats in the movie.
I would like to translate this to Quicktime. Some of the older software allowed this.
Can anyone help me?
Bud

You can try VisualHub from Techspansion:
http://www.techspansion.com/visualhub/
Also, try dragging the file on top of RealPlayer 10 while holding
down both  and Option (Apple Option) keys. RealPlayer is supposed
to be able to handle QuickTime files, it may even be able to open some
supported files that the current version of QuickTime will not open.
RealPlayer is available here:
https://order.real.com/pt/order.html?country=US&language=EN&mppi=0&mpposlist=0&mpst=0&ppath=cpmacpl060204a&pageregion=player_button&pcode=rn&opage=realh ome_spmac_bb&src=realhome_spmac_bb_0_1_1_0_0_20
( If the above link does not work, go to the front page, http://www.real.com/ , and select the blue button near the top right, " RealPlayer - Free " ).
If you are not able to open it with either of the two suggestions above, you can send me the file, and I will try to open it. I am almost sure that I can find a way to open it.
Hope this helps, take care.

Itunes or Quicktime does not open !!!

Ok I frist tried to upgrade my previous Itunes 6 to Itunes 7.0.1
Then after downloading and everything I try opening Itunes
Next I get the Lisciencing Page (agree-decline)
After that nothing happens ...
Itunes would just have its arrow pointing at it ... and I would have to force quit
Then I read I needed a higher version of Quicktime - So I beleive that the problem is the Quicktime ....
Download QT 7
From here the Quicktime does not even open anymore ....
Mess with a couple things install reinstall ... take the itunes recipt out of the library ad such but still does not work
So I decide to straight re install my Mac OS from the ground up ....
Back Up everything
Install everything ... download itunes 7.0.1 quicktime 7
It works ...
From here i decided to drop my music i saved on an external hard drive ...
Now whenever I try to open Itunes ... Itunes does the same thing from where I tried to fix ...
It Doesnt open just sits on the dock .... forcing to quit again ...
SOMEONE PLEASE TELL ME WHATS WRONG ...

What system software does your computer have?
Your info says 10.0.x, but that can't be true if you previously ran iTunes 6.
If you did an Erase and Install or an Archive and Install, you should not have problems when you're at least running OS X 10.3.9.
You may read Mac OS X 10.3.9, 10.4: Some Apple applications don't open to see if it applies to your situation.
Hope this helps.
M

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?

Help!!! Itunes and Quicktime does not open

I already followed the suggestion here on the problems for ITunes and Quicktime suggestions to follow to go to Control panel but does not work and tried to uninstall and install back the itunes with quicktime but still no luck....I am deciding to return the ipod...it is frustrating..Help needed before i finally return this !!!!

rafaella,
So you have tried the steps in this thread?
http://discussions.apple.com/thread.jspa?messageID=3482546#3482546
Generik

Quicktime does not open, etc.

ok, when i go to open Quick time, it doesn't open, instead, a window ALWAYS pops up saying: "Quicktime player has encountered a problem and needs to close. We are sorry for the inconvenience." How do I solve that problem?
Also, when i open the "add or remove programs" window, quicktime doesn't appear on the list(this is under "change or remove programs"), why is this?
I would appreciate it very much if someone could tell me the solution to these 2 problems. Thanx =)

It would seem to me that the solution would be that you have to remove QT manually from the computer then download and install a new version.
I really don't see doing a repair myself to get the exsisting QT running. For QT to not appear in the add\remove control panel would appear to me that a registry key was deleted, I don't know how else it would have been removed from the control panel.
You might also want to run this
http://support.microsoft.com/kb/290301/)

HT3775 quicktime will not open .mp4 from imovie

I put together a imovie that is 1hr 10min long. I am trying to burn this to a disc to view on a DVD player. I burned the .mp4 file from imovie... the dvd nor my mac is supporting the media. What am I missing?

http://www.videolan.org/vlc/download-macosx.html

QuickTime does not automatically open video clips when double clicked

Quicktime does not open video clips in iPhoto when the video clips are double clicked (nothing happens). Quicktime will open the video clip if I open quicktime
and ask it to open the video clip. Regular photos will expand as they should when they are double clicked.

It worked. I don't see why the Protected Mode is enabled in the first place, if it were to cause issues.
Anyways, thanks Sabian,

HT3775 Quicktime is not opening my Mp4 files and I do not know why? Any suggestions?

Quicktime will not open my mp4 files and I do not know why. ANy suggestions? it happened after I upgraded to IOS 6. Not sure what to do. VLC program will open them but not Quicktime. I can't get them into Itunes either. Thanks!

Quicktime will not open my mp4 files and I do not know why. ANy suggestions? it happened after I upgraded to IOS 6. Not sure what to do. VLC program will open them but not Quicktime. I can't get them into Itunes either. Thanks!

Quicktime 10.4 does not open at all in yosemite

After clicking on Quicktime 10.4 icon in applications folder, it does never open. Icon appears not on the dock at all.
Please any idea on how can I solve this? how can I resintall it?
thx

After clicking on Quicktime 10.4 icon in applications folder, it does never open. Icon appears not on the dock at all.
Please any idea on how can I solve this? how can I resintall it?
Some aspects of you problem remain unclear. Are you saying that no "player window" opens, no "navigation window" opens, or the app itself does not open in the "Menu Bar" at all? Further, is the problem manifest itself globally or only in one user account? Nor is it clear if you are referring to the QT Player icon always being displayed in the dock or simply when/if the app is opened.
For instance, it is normal for a player window not to appear if no source media file was selected/opened via the finder. On the other hand, the failure of a navigation window or the app itself to open may indicate a system, app, or PLIST file (if still used) corruption problem. In the latter case, I would normally recommend switching to a secondary or guest user account to see if the problem is global or local to your primary account. If local, then you could either isolate/fix the local issue and fix it (e.g., locating and deleting an associated PLIST file if still used); create a new "primary" account, transfer required resources from the old to the new user account, and then delete the problem account; or simply re-install the entire system.
Unfortunately, under the latest version of Yosemite, the QT X Player is considered "essential" and the system, under normal circumstances, will not allow you to remove or delete the app any longer—probably because users in the past deleted the player on purpose or by accident on a wholesale basis and Apple does not provide downloads of the QT X Player independent of the operating systems with which they are associated forcing novice users to re-install their entire system or forcing more experienced users to re-extract the compatible player software for re-installation. Unfortunately, while it is still possible to re-extract the QT v10.4 Player from the installer package, the same system routines that prevent you from removing/deleting the player also prevent you from copying/replacing the current plater in the "Applications" folder.
Basically, what you should/can do depends on the specific nature of your problem and how well versed you are with the system.

My quicktime does not work at all on my iMac with Lion

When I click the quicktime icon it does not open up at all. Quicktime has never worked since the day I bought the computer which was a few weeks ago. Is there a fix to this problem?

Your warranty includes 90 days of phone support. Call AppleCare.

Itunes and quicktime will not open properly

My itunes freezes when opening and quicktime say there is a run time error. I have uninstalled everything and quicktime does not go away. then re-installed both and they still do not work. not sure what to do.

I have uninstalled everything and quicktime does not go away
what's the precise wording of the message that you're getting when you try to launch itunes?
what is the wording on the message that you get when you try to uninstall QuickTime?
(include error message numbers if you're getting any.)

Quicktime will not open after upgrading to "Snow"

Quicktime will not open after upgrading to "Snow". The light underneath the dock icon lights up but the application does not open. Suggestions?

Actually, wasting bandwidth is a waste of people's resources who offer to help here. You posted and got answers to your post. What you thought of that would be better (for you) was posting it in every corner of AD that might get read would give you a response 30 nanoseconds faster than posting once. So read your answer and enjoy your computer.
All you need to do is post in the right forum section, and wait for a response. It will come unless nobody has a clue which rarely occurs.

Premiere elements 12 does not open

i have photoshop and premiere elements 12. the photoshop works fine, but the premiere does not open. when clicked on the hard drive spins for a short time but nothing opens. using windows 7.

etvicb
When you go to the Control Panel/Install Programs, is Premiere Elements 12 shown to be installed on the Windows 7 (assumed 64 bit) computer? After the program installation and restart of the computer, you should have gotten a Sign In dialog. You need to give you Adobe ID and password there for the program activation.
When you are trying to get the program to respond, are there error messages being deposited in the Event Viewer (Computer/Manage/Event Viewer/Windows Logs/Applications)? Have you checked for any error messages there?
If you look at the Notepad document for the Hosts File, does it look like this default representation
Path to the hosts file in Windows 7 64 bit is
Local Disk C
Windows
System32
drivers
etc
and in the etc Folder is the hosts file.
Right click on the hosts file followed by Open and select Notepad. This should
give you what you see in the screenshot above. If you see anything below the line
# ::1 localhosts
then we need to check that out.
The antivirus is the most likely candidate to look at in the troubleshooting scheme, but also
check out any firewall involvement as well.
Are you all set on permissions - Run As Administrator and User Account with Administrative Privileges? Is your Internet connection OK? Latest version of QuickTime installed?
Although Premiere Elements is not mentioned specifically in the following Adobe document, I have seen Adobe Staff make reference to it for Premiere Elements troubleshooting purposes, you may want to check it out
http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html
Please review the above and then we can decide what next and consider the benefits of getting Adobe involved in the issue, especially if you are within 30 days of purchase.
Looking forward to your follow up.
Thanks.
ATR

Quicktime does not appear in my System Preferences ?

Quicktime does not appear in my System Preferences ? Anyone know why, I'm wanting to enter my registration keycode.....................where has it gone ?

There is no QuickTime System Preference pane in Snow Leopard or Lion.
Open QuickTime Player 7 (7.6.6) from the Utilities folder and click Registration... under its menu.

Quicktime does NOT open mp4

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