Perian launched in and quickly became a "must-have" for every new Mac installation. However, as Apple transitioned from QuickTime 7 to QuickTime X , the plugin architecture changed, and Perian became increasingly difficult to maintain.
"The need for Perian has dropped dramatically as QuickTime X and other players have improved. We recommend moving to VLC or MPlayerX." perian for mac
For years, was an essential tool for users, often called the "Swiss Army knife of QuickTime components" because it allowed Apple’s native player to handle almost any video format. Perian launched in and quickly became a "must-have"
Apple began phasing out QuickTime 7 with the introduction of in Mac OS X Snow Leopard (2009). QuickTime X was rewritten for performance and security but dropped support for third-party components like Perian. Perian could still work with QuickTime 7 (if installed separately), but its utility faded. We recommend moving to VLC or MPlayerX
: It enabled playback for AVI, MKV, FLV, DivX, VP6, and VFW .