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Hi, I want to play MKV files on my Mac with QuickTime player. I've already downloaded DivX Codec for mac but QT still can't open MKV.

QuickTime Player is a built-in media player and screen recorder for Mac users. It enables you to play video and audio, record Mac screen, edit and share files on your Mac. You can easily watch various MP4 or MOV videos in this default player. In Mac OS X v10.6 and newer, since the QuickTime X (QT Player v10.x) AVFoundation playback structure no longer posses an open codec architecture for 3rd party plugins or components installation, you can't drop AVI files that aren't encoded as Mjpeg video with PCM onto QuickTime X player for direct playback.

MKV (Matroska) is not a codec—it is a modern, extensible, open standard Multimedia container. Installing the Perian codec package will normally allow QT 7 to play and QT X to convert MKV files—but only if your system is configured with the codecs need to support the data in the MKV file container. In addition, QT 7 (which is a program stream media player) will often have to read through then entire file before it may begin playback. (With something like a 30-minute DVD TV episode, this can take a while. With a feature length Blu-ray movie—forget it.) Your best solution for almost all MKV files is to use an FFmpeg-based media player like VLC, NicePlayer, MPlayerX, Blu-ray Player, or similar apps that will begin playback immediately and support common compression formats used in MKV files.

by Brian Fisher • Feb 27,2020 • Proven solutions

Codecs For Quicktime Player Mac

Why Do You Need a MP4 Codec for QuickTime?

QuickTime can handle different video, sound and picture formats on Mac devices. It contains some of the popular codecs such as JPEG, DV, and MPEG4. However, you may find that it does not play some formats of MP4. This is because QuickTime only supports some of the MP4 video and audio codecs. Therefore, you may find that if you have MP4 files that QuickTime does not support, they will not play. This means that to play MP4 files that are not supported by QuickTime, there is a requirement to convert them to a supported format. You will need an MP4 codec for QuickTime.

Get the Best MP4 Codec for QuickTime on Mac

UniConverter is the best MP4 codec that can enable playing of MP4 videos on Mac devices. The converter is a tool used to convert videos and audio from one format to another. In this case, it can convert the MP4 files on your Mac device to a format that is recognized by the media player. Other than converting, the software can also be used for editing videos, burning DVDs and downloading audio and video files from various sharing sites.

UniConverter - Video Converter

Most Useful Software to Convert MP4 Videos for QuickTime:

• Convert MP4 videos to QuickTime compatible format with only three steps.
• It converts videos at 90 times faster while maintaining the original quality and it supports different input and output formats.
• Download online videos: It can download videos from various video sharing sites such as Hulu, Youtube and Facebook as well as convert them directly for use on the desired device.
• Burn MP4 videos to DVD, or copy your DVD file as a backup as needed.
• Edit your MP4 videos before conversion.
• Keep the original video quality after conversion.
• Perfectly compatible with macOS 10.7 or later, macOS 10.12 Sierra included.

Step-by-step Guide to Convert MP4 Videos to QuickTime Compatible Format with iSkysoft

Step 1. Import MP4 Files

There are two ways you can import videos that you want to be converted to the program. You can drag the files to be converted to the window. You should note that if you add a folder, all the files inside will be included for conversion. You can also hit the 'Files' button and then choose 'Load Media Files' to do this.

Download Quicktime Codecs For Windows

Step 2. Set Output Format

Choose the output format you prefer and that can be played by QuickTime. The program supports more than 150 formats that are in six categories. Go to the right category and chose the format. Here, we recommend you to choose 'MOV'.

Step 3. Convert

Quicktime Wmv Codec Mac

Convert your file by clicking the 'Convert' button. You will now get videos or audio that can be played using QuickTime. When the conversion is complete, you will get a message prompting if to open the folder.