I have about 190 movie clips from my vacation that need to be merged together. Originally they were in AVCHD but I had to move all the files off the SD Card from my camera from which I kept ONLY the raw MTS files. I can convert these individually with Handbrake to single mp4 files, but that would take ages and the total running time is about 3 hours (more for conversion and such). So I've been able to convert the files to M4V with ClipGrab and a script file which opens up the doors significantly for batch join. The question now is: What software do I use? I've tried iMove but importing anything takes ages and exporting on top takes equally long and the exported quality is absolute GARBAGE even with uncompressed (my source files are 1920x1080). MPEG Streamclip doesnt really work as intended, it leaves artifacts all over the video. MP4 tools also has problems. I really don't understand why there is no SIMPLE application to join a bunch of video files.... Any help??