My default Quicktime Player that comes with OS X 10.9.5 stopped working. When trying to open, I get a 'Problem Report QuickTime Player' with options 'OK' and 'Reopen'. Neither option works. Needless to say I can not play any videos. This is NOT due to upgrades, it was working but overtime it started developing problems.

1. Here is my view of Quick Time / New Screen Recording on a Mac Mini: On my Macbook Pro, I have the option select None or Internal Microphone. Internal microphone actually records the speakers of the Mac Book as heard from its own microphone, which obviously sounds terrible. This is a MacMini 7,1 (late 2014) and there is nothing in Input Sources.
2. I understand that sometime in 2013 Quicktime 10 for Mac started to force conversion of.mov which were in a legacy format into a new format. The way this currently happens in when I open a file with quicktime it takes a significant amount of time to convert it and then I have an option to save it.

A friend recorded a video using his iphone and sent it to me. it has the extension .MOV

Quicktime Player 10.5

when I try to open it using quicktime I get this message:

QuickTime Player can't open 'mp video for Jimmy.MOV'

I'm on a Macbook Pro running OSX 10.9.5, using Quick Time 10.3

Looks as if nobody wants to address this issue here... That or everyone is too busy checking out the official Yosemite Mac OS release.

1. A MOV file is basically and MOV file container containing any form of compatible data. Thus, it is often helpful include information regarding what form of data is actually contained within the file.
2. Since the original file was recorded on an iPhone, the MOV file should contain H.264 video with AAC audio and should be compatible with both the QT X v10.3 and QT 7 players under Mavericks. However, since the file was obviously edited (at least the filename was changed), can you confirm the type of data actually contained in the?
3. In some cases, an iPhone (H.264/AAC) video may not open correctly in QT following security and/or system updates. In some cases, simply rebooting the system may 'fix' the problem.
4. Another possible test you can run is to try and play the file in a third-party media player. If the file plays correctly, then the file is okay and the problem is most likely associated with the codec configuration, the player app, the PLIS file, etc. and you will have to run further tests.
5. In still other cases, a file may become corrupted during editing or transmission. In these cases it is often necessary to examine either or both the original source file and the received file to determine the specific source of the problem, as well as, the problem source.

In any case, at this point, based on the limited information given, responders can only make guesses as to what the primary issue is here or how it can be corrected.

Quicktime 10.5

Quicktime Player For Mac Catalina

Oct 17, 2014 3:07 PM