I know people have posted this website before but i thought this freebie was worth a mention.
Get for a limited time only the full version of WinX HD Video Converter for Mac free.
WinX HD Video Converter for Mac, as a professional Mac HD converter, supports converting Multi-track HD video M2TS, MKV, AVCHD, HDTV BDAV and MPEG-TS video movies. It can also convert video files to the video formats that playable on both portable and console players, such as iPad, iPod, iPhone, Apple TV, PS3, PSP, Xbox, Zune, PDA, Blackberry, Nokia, Android, Zen, etc. It is the best solution to convert HD & SD videos and make a backup for Mac users.
I haven't tried it yet myself, but considering it is free its worth a try.