Hi Dixie
As I mentioned .png files can be quite large
As an example, using VP 3.04, taking a snapshot from an mpeg4 clip of 1280 x 720 pixels, the .png image was 1280 x 720 and 1.7 Mb
Using VP 2.41 a corresponding snapshot from the same clip generated a .jpg image of 598 Kb.
Visually the two images appeared pretty much the same and of good quality. The section of video clip from which the images were derived was fairly static though which can make a lot of difference to the "clarity". This may be the reason why your image was not clear.
It would be interesting to know what the frame size of your video is...1920 x 1080 1280 x 720 etc.
I am surprised that you say your video clip had only 10 frames!
Was this, in fact the case, or were you refering to the number of thumbnails visible on the sequence track? A 10 frame clip would run for 1/2 a second or less as VP plays at 30fps.
Although you say your clip plays very clearly, a still taken from it may actually be quite blurred if there is rapid action in the clip. At the normal playing speed of 30fps it may look OK as the eye and brain are fooled into not seeing the blurred images.It will appear to be clear. So you may be disappointed with your snapshot image if this is the case.
Try stepping through the clip one frame at a time (you say there are only 10) and select the best. Even in the VP preview screen you will see the difference between the frames when movement is involved. The preview screen IS small though and what you see here is also a compressed image for preview purposes.
Your .png snapshot however, will be a pretty faithful copy of the frame you chose , so if THAT looks blurred then the frame you chose would also have been blurred although you may not have noticed this in the small VP preview screen.(Catch 22)
Converting your .png to a .jpg will not improve the quality as you will be compressing the image data to make the file size smaller. This inevitably means losing information from the image.
Compressing a physically BIG jpg image down to a capacity suitable to em will in itself tend to blur it and is usually offset by reducing the image size which has the effect of making it appear clearer.
Try checking the other frames and see what comes up.
Nat