FAQ: QuickTime Not Working with Perian
1. Cannot open Perian on Mac
Q: I've tried to download Perian from different sources but none of them can be opened because of unidentified developer.
On you Mac, go to System Preferences > Security & Privacy > General > Allow apps downloaded from… and set your preference, try to open Perian again to see if it works. For any users who can't open Perian for QuickTime, we suggest checking if the components are compatible with the version of QuickTime and macOS.
2. QuickTime with Perian won't open AVI files
Explore 25+ Mac apps like QuickTime Player, all suggested and ranked by the AlternativeTo user community. Definitely better than VLC as a Mac alternative. Someonelast • Jun 2018 • 1 agrees and 0 disagrees Disagree Agree. A Mac media player based on QuickTime and FFMpeg, Open source under the GPLv3 and hosted on Google Code.
Q: QuickTime refuses to play AVI files in QuickTime 7. Any straightforward solution for this problem?
It's common that QuickTime won't play AVI files even you have Perian installed on your computer. AVI is a container format introduced by Microsoft, which can contain different types of video and audio codecs unsupported by Perian. You have three ways to solve the error of QuickTime with Perian not playing AVI files:
Try other QuickTime Player alternative, for instance, VLC Media Player, 5KPlayer, MPlayerX etc.
Convert AVI to MOV, the best video format for QuickTime.
Install other AVI codec packs to help QuickTime play AVI media files.
Quicktime For Mac Latest Version
3. QuickTime doesn't play MKV with Perian installed
Q: MKV video files won't play in QuickTime with plugin Perian. I downloaded some MKV files but they couldn't open via QuickTime with plugin Perian installed on Mac. I thought QuickTime would work with MKV videos.
MKV is a container format like MP4 and AVI. The reasons why QuickTime is not playing MKV are similar to that of QT not playing AVI files. To play MKV on Mac, try other MKV players for Mac or change MKV to MOV with H.264 codec that is widely accepted.
Quicktime For Mac 2018 Collections
Use QuickTime Player (version 10) to play, record, edit, and share audio and video files on your Mac. Use QuickTime Player. QuickTime Player help. In QuickTime Player, you can play video or audio files. QuickTime Player uses onscreen controls similar to a CD or DVD player. Learn about controls. Where to get answers about QuickTime 7. Regrettably, the basic QuickTime 2018 package includes iTunes 5, which swells the download to more than 33MB. As well as if you do not take note during setup, iTunes will certainly become your default sound player. The good news is, you could uninstall iTunes without uninstalling QuickTime 7.