MP4 Won’t Play on Mac Issues:

“mp4 files that won’t play on my mac but play on my PC? Is this a codec thing? Is there a program to convert these MP4 files for playing on mac os x?”

“I can’t Play MP4 video on quicktime , Please Help !!”

“Mac Owners: Can you play MP4 files??? Just wondering if you can play MP4 video files on OSX without having to install or buy anything. I’ve had such a pain with my windows machine in trying to find codecs to play these files. Gah!”

“MP4 File Won’t Play on Mac: Recently I have recorded a movie using my digital camera on one of my friend’s birthday party. Later I transferred that file to my Mac system. Next day I converted that file to MP4 format and deleted original file from system. After few days I opened that file to watch but it refused to play on Mac system. This file is very important to me. Please suggest any solution to fix this issue. Thanks in advance…”

Apple provides you with a number of media-handling options in OS X, with QuickTime being the core service for displaying videos; however, there will likely be times when you have downloaded a video file that simply will not play in QuickTime like MP4 files. When opening the MP4 videos you may receive an error that prevents you from viewing its contents.

Why QuickTime Won’t Play MP4 on Mac?

If so, why Mac QuickTime won’t play MP4 files sometimes? According to Apple Support Website, QuickTime can only support MPEG-4 (.mp4, .m4v), but MP4 is a complex video container with various video and audio codecs. That’s why sometimes QuickTime plays MP4 well, sometimes doesn’t.

To solve Mac QuickTime won’t play MP4 issue, a strongly recommended solution is to convert all kinds of MP4 videos and movies to QuickTime more compatible formats on Mac OS X.

How to Convert Various Kinds of MP4 Files to QuickTime Formats for Playing on Mac?

Aiseessoft Video Converter for Mac, the best MP4 to QuickTime Converter for Mac, can help convert QuickTime unplayable MP4 files to Mac QuickTime compatible MOV, MP4 and more. The nice MP4 QuickTime Converter provides solutions to all QuickTime MP4 issues.

Besides, QuickTime MP4 Converter for Mac also enables to convert among all the popular video and audio formats like MKV, MOV, AVI, Xvid, DivX, H.264, MP4, 3GP, WMV, RM, FLV, WTV, MXF, MVI, F4V, Apple ProRes MOV, WebM, VP8, 720p, 1080p, 1080i HD, AVCHD videos, MP3, AAC, AC3, WAV, WMA, FLAC, OGG, AIFF and etc. The powerful MP4 to QuickTime Converter features fast conversion speed and superb video quality. With MP4 QuickTime Converter, it is just so easy to play various videos on QuickTime Player.

What’s more, this Mac MP4 to QuickTime Converter is a wonderful video editing tool for you to trim, crop, merge videos, cut video clips, increase sound volume and more.

Steps on How to Convert MP4 to QuickTime Supported Formats on Mac OS X?

Free download and install this powerful MP4 to QuickTime Converter for Mac, and then follow the step by step guide to finish MP4 to QuickTime transformation on Mac.

Step 1 Load MP4 to Mac MP4 to QuickTime Converter

Simply drag and drop MP4 files to Mac MP4 to QuickTime Converter. To batch convert a couple of MP4 files, put them in one folder and then drag this MP4 folder to Mac MP4 to QuickTime Converter, you’ll see the files are loading in the task list in order quickly.

Mac MP4 to QuickTime Converter

Step 2 Set QuickTime compatible formats

Click “Profile” drop-down button to choose “MOV QuickTime Video (*.mov)” as output video format from the “General Video” category.

video format you want to output

Step 3 Convert MP4 to QuickTime on Mac OS X

Click the big “Convert” button to start converting MP4 to QuickTime on Mac OS X with fast conversion speed.

Tip: MP4 QuickTime Player Alternative – UFUSoft Mac Blu-ray Player

Note that there are several formats that use the “.mp4” file extension, including those that are proprietary to Microsoft, that have not been ported to Mac. If you just want to play the MP4 video any way you can, and don’t particularly need it in QuickTime, you can try the free HD media player – UFUSoft Mac Blu-ray Player is a great Blu-ray Disc/Folder or BD ISO Player and Video Player, which supports more formats and is able to play incomplete, unfinished, damaged videos or an unknown format in its raw form, which is a better solution to QuickTime not playing MP4. UFUSoft Mac Blu-ray Player also outshines other MP4 players in image rendering and 4K/8K video support, including HEVC H.264/265, VP8/9 etc and other file formats like FLV, WMV, MKV, etc.

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2 Comments

  1. Files won’t load. They are mp4 files taken from the SD card in my Lumix TZ80 camera. have spent 4 hours trying everything and all types of “free” downloads. When attempting to load file the reason message says “failed to load file” !!!

  2. First, transfer your files from the sd card to your mac, then launch the problem and load them into this video converter for mac, which will recognize them and import them, then you can make a conversion.

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