Hi
Borate is correct when he says to save your completed work as a .vpj file......i.e. Save it as a project file. When you continue to work on it, this file reconstructs your project from the original film clips***.
Reconstructing it from any saved MPEGs or avis you have made may not be the same. I have already noted that saved mpg4 files are considerably smaller than the original camera mpeg4 files which may have some effect if they are used again. (But only guessing)
The point I am making is that the ORIGINAL MP4 H246 test clip I made of traffic downloaded from the camera plays perfectly OK and smoothly on both the WMP and the VCL player whereas once loaded to VP it plays with a regular jerky motion most evident when the image pans or the objects move across the frame from one side to the other.
More annoyingly, irrespective of the output file type, this jerkyness remains visible in any saved files created by VP. (Even DVDs.)
When playing the original clip it's interesting to note the movement of the progress pointer with these players. With VLC (which plays smoothly) it moves in regular spurts which makes me think it is perhaps buffering the video stream as it plays it in some way, hence the smooth output. With WMP the movement is less jerky but the video is still quite smooth.
This jerkyness created by VP is an annoying effect particularly as it remains in the finished video.
Furthermore, is it something that can be addressed by NCH?
Nat
*** Or does it? The .vpj file certainly uses the cache file created by VP and the cache does seem to contain copies of the video clips used. Perhaps these are are already jerky having been created by VP. Its difficult to say with certainty as the only clips that definitely play without jerks are those downloaded from the camera.