How to download and install K-Lite Codec for Mac – Perian. Perian is a free, open source, QuickTime component that extends QuickTime support for many popular types of media, including MKV, FLV, WMV, AVI, DivX, and XviD.
Perian is one stop codec resource on Mac similar to K-Lite Codec Pack on Windows. If that happens, your app won't open the file or won't play back its audio or video. Older or specialized media formats might not work in your app, because the format requires software designed to support it.
mpg), some AVI and WAV files, and many other formats usually work in most apps without additional software. Some apps prefer specific formats, but QuickTime movie files (.mov), most MPEG files (.mp4. Apple apps such as QuickTime Player, Photos, and Keynote work with many kinds of audio and video formats.