I just bought a Canon Vixia HF S100. When my SD card was full I copied al the files to an external hard drive. Now I'm trying to edit and see everything with imovie, but the files are .MTS files and imovie can't read it. What can I do?. The software that the camara brings only works on PC not on mac. iMovie (even the current one) can't work directly with the .mts file. When you recorded the video, the camera created a folder structure including the .mts files and other info, and iMovie needs the full folder to make sense of the .mts file. Mac Canon Vixia Video Converter is assuredly the easiest and quickest way for Canon camcorder owner to transcode HD M2TS or MTS video to Mac-compatible formats like MOV, MPEG4, etc. Meanwhile, it has various optimized presets for editing applications like Final Cut Express, FCP or iMovie; portable devices like iPad, iPhone 4, iPod Classic, iTouch, BlackBerry, Zune, Creative Zen, iRiver, etc. Three steps on how to transfer or convert Canon Vixia video to Mac, iMovie or FCP, etc Step 1: Download the Mac Canon Vixia video conversion program, then connect Canon Vixia camcorder to Mac. Click "Add File" to load .mts or .m2ts shootings into the application. Step 2: Choose the output video format in the drop-up list of "Profile". If you intend to edit the recorded clips in iMovie, select iMovie video->iMovie MPEG-4 H.264 video format as the target format. Step 3: Hit "Start" to begin the Canon Vixia to iMovie conversion. In addition, the Canon Vixia Video Converter for Mac also provides rich options such as Canon Vixia video trimming, Canon shooting cropping, Canon Vixia video effect, snapshot favorite picture and so forth. Know more about editing features of Mac HD camcorder video editor.