Posted By iPad Admin on Dec 13, 2017 in Mac, Video Players. QuickTime for Mac is the most popular Media Player Application, which supports almost all video formats. Download QuickTime for Mac Free. QuickTime for Macbook Pro is the product of Apple, which gives you a very fluid interface as like other Apple tools.

I'm using the lasted updated Yosemite on a 3-year old iMac. Back in my early iMac days (3 years ago), I imported my camcorder's AVCHD files into iMove or Final Cut Express and converted them to Quicktime MOV files. Turns out they were rendered by Apple or Final Cut into MOV files using the Apple Intermediate codec. I had no choice over this. Until I upgraded to Yosemite, I was able to preview any of these movies very easily in the Finder.

Simply highlight the movie, press the spacebar, and it opens, in a real-time, real-size screen, with a simple play-pause button in the progress bar at the bottom. Never had a problem with any previous Mac OS. Now when I click on the file in the finder, instead of a movie preview, I get a big, silent QT 'Mov' icon that just sits there looking silly. I double click it to open it up in Quicktime, and it attempts to go through this lengthy conversion process, taking at least as long as the movie is in minutes, then asking me if I want to save this new 'converted' version.

Fortunately, I have an old version of Quicktime 7 on my Mac, and QT 7 opens it and plays it no problem. No 'conversion' necessary.

No cumbersome and space-hogging needs to create a 'cloned' copy, just so the new, lame version of Quicktime can play it. What's up, Apple? AIC was YOUR codec that YOUR SOFTWARE chose to transcode into. Now, your new Quicktime does NOT support this codec?

And your old version does? And why might THAT be? Really, this is so elementary. This is not rocket science.

Just like JPG images not displaying properly in Mac Mail now. It begs the question 'why'.?

I mean, for the elementary preview abilities that always made Mac such a friendly computer. Where is that? And here we go, wasting hours of time, looking for fixes that should not have to be 'fixed'. Did I miss something? Regardless of what label is put on the codec, the fact is, it was playable effortlessly by all the preview functions and by the native Quicktime player in all the the previous Mac operating systems.

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And, in addition to that, currently effortless playback in Mpeg Streamclip, VLC player, and Apple's own Quicktime 7. And no, I didn't 'miss something' when I exported previously. Final Cut Express and iPhoto offered no export options in their conversion rendering into QT AIC. For Apple to further cripple both quicktime and the finder preview abilities, favoring MP4 - which is not a native apple compressor - and dumping AIC - which was, makes no sense whatsoever. Apple has dropped support for dozens of 'legacy' codec in the latest version of QuickTime and Quicklook in Yosemite.

AIC is only used to import non editable formats like MPEG-2 so they can be edited in iMovie. I repeat: It's not a delivery codec and isn't intended for playback. Apple hasn't crippled anything when the drop support for these older codecs.

They can still be converted by QuickTime X for use in Quicklook. Apple is a contributing member of MPEG and developed H.264 for its use. It's as native as anything else at Apple and Apple still uses AIC on older machines. QTK: I understand your rationale about AIC not being a playback codec.

And if this is Apple's rationale, nothing can be done. It was also Microsoft's rationale to make Windows Media Player a quirky territorial headache in favoring Windows-friendly codecs & architecture, much to it's eventually ******* off zillions of users.

What is 'rational' is often unfriendly and alienating to loyal consumers. EricR: I do have VLC, which I've used for decades on both Mac & my previous 'PC' lifetime. It's a great utility.

But previewing in the Finder (like Windows File Explorer for you PC folk) by pressing a space-bar, or similar in file-open dialogues is very very very handy, and that's what I feel is a loss. Anyway, thanks to all for comments. I'm glad I found this thread as I just realized tonight that I am having the same issue as Inscapes. I have a new Dec '14 MacBook & today I went to replay some of my 5+ years worth of camcorder movies that I have saved on an external drive. All these movies were previously downloaded from my Sony HD camcorder (assume AVCHD format) to an external hard drive using iMovie on my old MacBook. I have always been able to use Finder and immediately view any of these MANY videos in QuickTime or in iMovie.