I have been enjoying my Gopro Hero and playing mp4's on my Macbook. I updated the book from 10.5.8 to 10.7.5. With the upgrade Quicktime got upgraded to 10.1. All other aspects of the upgrade work fine however mp4s that played smoothly before are now unwatchable as Quicktime will not play them smoothly.
Any thoughts would be appreciated.
Quicktime 10.1 was a complete rewrite from previous versions. It will have MANY bugs. Revert to an older version to cure your problem.
Gary
Gary, thanks. How do you revert to an older version of QT? I tried installing QT version 7.7 and my Mac wouldn't allow me. Any thoughts?
gabe
Before I answer, let me provide a bit of history.
When iMovie was released, it was written in the "C" programming language. It stayed that way through v2.1.2. Then in v3.0 it was re-written in a language called "Cocoa". The result was a product that couldn't be used for more than a few minutes before it crashed or destroyed the video footage it was being used to process. It took several releases before iMovie resurfaced as something to be trusted.
Now Apple has done it again with Quicktime. This time the rewrite was from a collection of languags to "Objective C". And voila; we have "Mavericks" and Quicktime 10.1. And another period of time to avoid Quicktime "upgrades".
Personally I don't use OSX more than 10 hours a year and then for VERY specific tasks that I absolutely can't do in Mac OS 9.2.2. So I have no clever way to give you for reverting. My brute-force approach would be to erase an unused disk and install everything that you had on the original disk on the erased disk before you let auto-update loose on the ill-fated original one.
You might also ask in a forum that is specific to OSX. This forum is actually for the older stuff that was released before X showed up.
Gary
With the release of Mac OS X 10.9, we are up to Quicktime 10.3.
To get the best version of Quicktime for your Mac operating system, download from here version 7.6.6 if the Pro key or older formats are needed:
quicktime no longer plays my mp4's smoothly
