Hi..
Processing 1920 x 1080 HD video can stretch the resources of some computer systems. When a computer is unable to maintain the processing of the video the result is normally dropped frames.
Please try to convert using a lower resolution version of the same video and see if the problem persists. Normally you will find that the as you lower resolution the dropped frames will stop.
If you continue to have problems even with lower resolution video, please send your dxdiag.txt file to Support using the link below so we can check your system specifications.
Please follow the instructions below to do this.
1) Select "Start"
2) Input "dxdiag" and click on dxdiag.exe in the results list.
3) It will check your system for a while, after it finishes, click "Save All Information"
4) Save "DxDiag.txt" and send this file to us.
http://www.reallusion.com/CustomerSupport/User/QForm.aspx
For your second question.
The primary use of popVideo Converter is to export .popVideos for iClone and CrazyTallk Animator. However we also allow export of a mask video (black and white) to .AVI format. This can be used in conjunction with your original source video in most video editors for compositing and further editing .
Peter
Forum Administrator
www.reallusion.com