I have tried using Premiere Elements 7 and Premiere Pro CS4, creating a video that displays multiple videos at once. I tried:
I followed this instruction: Heron Productions
- Splitting the screen into four boxes of same size (top left, top right, bottom left, bottom right), each filled with its own video
- Having one main video with 3 picture-in-picture windows overlaid on top of the main
In both cases, after I rendered work area, I see the video on Track 1 and sometimes Track 2 become very jerky, like skipping backwards and forwards by themselves. Exactly the same issue also when I export into final video. The only way I could solve this issue reliably is by decreasing the number of simultaneous videos/windows to two.
Is this a bug? Or am I doing something wrong? FWIW, all my sources are AVCHD files from a Canon HF100, and the project is a 1080 30i.
Again, I can do two-video split screen/PiP just fine, but more than two simultaneously causes the frame skipping/jerkiness. As a temporary workaround, I usually render a two-video split screen with a space for another two, then I import it into a new project, adding the other two PiPs. But of course this is an ugly solution.