Yesterday Perian updated its QuickTime plug-in for the Mac. For those of you who don't know about it, Perian is a plug-in allowing Mac users to view a virtually unlimited number of video codecs in QuickTime Player. Among the codecs are AVI, DIVX, FLV, MKV, GVI, VP6 and VFW, just to name a few.
The 1.2.2 update adds compatibility with WebM/VP8, compressed MKV files and FFv1 lossless video formats. Perian 1.2.2 requires Mac OS X 10.4.7 or later. But users of older Mac OS versions are forewarned -- this is the last version of Perian that will support PowerPC Macs or any Mac running Mac OS X 10.5 and below. Going forward, future releases of Perian will only support Intel Macs running Mac OS X 10.6 or higher. Perian is a free download.