Part one: m2ts video player and free m2ts video converter
Some M2TS video from Panasonic, Canon, Sony can be played with ALLPlayer, MPlayer, VLC, etc, other players will need an appropriate codec, component or plugin installed.
There are some free m2ts video converter, say current versions of Nero Vision, FormatFactory, MediaCoder, HandBrake and Picture Motion Browser are capable of converting M2TS files into MPEG-4 files etc.
However, these free converter all for Windows, if you are Mac user, hope to play your video with Blackberry etc, what will you do? This article will recommend you a great m2ts to avi converter for Mac which can convert and import m2ts video to all avi multimedia device on Mac.
Part two: Convert m2ts files to avi using m2ts to avi converter for Mac

Magic m2ts to avi converter for Mac supports convert m2ts files to avi, m2ts to HD avi, m2ts to xvid, m2ts to divx, import m2ts files to avi. Creative Zen, Blackberry, iRiver etc on Mac(10.4-10.6).
Tips: AVI is a multimedia container format, allows synchronous audio-with-video playback with a high rate compression and can be used as a starting point to create playable dvds.
Of course, m2ts to avi Mac software also convert m2ts to mov, m2ts to dv, 3gp, mpeg, mpg, mp4, wmv, rm, rmvb, swf, m4v, 3g2, mkv, flv, hd mov, hd wmv, hd mp4 etc, import m2ts to iPod, iPad, iPhone3G/3GS/4G, Mobile Phone, PSP, PS3, iMovie, FCP, FCE, Adobe premiere, iDVD etc.
Tips:Programs like Sony Vegas Pro 9 can open and edit partly Sony M2TS files and Panasonic M2TS files, but not canon, Convert m2ts files on windows, import m2ts to Vegas, WMM, WMP etc can use expert iorgsoft m2ts video converter.
Additional, Mac m2ts to avi converter
supports convert various audio formats and extract audio from video and save as M4A, MKA, MP3/MP2, AAC, AC3, AMR, RA, WAV, WMA, AIFF, FLAC.
Part three: Edit m2ts files with m2ts to avi program on Mac
Merge: Join multi-file into whole movieCrop:Set aspect ratio, 16:9, 4:3, full screen etcApply Effect:adjust brightness, contrast, and saturation; special effect: gray, emboss, old film etc.Trim/clip:Split one single file into several part so you can fit them on your multimedia device.Output parameter settings: Adjust Resolution, Frame Rate, Encoder and Bitrate of video, Sample Rate, Channel, Encoder and Bitrate of Audio
Snapshot/Rotate:Capture images simply using snapshot button while previewing the movie and rotate vertical and horizontal.Tips: Step by step guide for edit m2ts files
Part four: Three steps on converting M2TS to AVI for Mac