It is best to reduce the picture within the original size range. If you want to enlarge, you have to consider the definition. Video resolution is generally enough for dv pal, and if you want to see it clearly, 720p can also be used.

If the picture is blurred, it is either too big, or the video resolution is too low or fuzzy special effects are added. It is best to reduce the picture within the original size range. The output format is preferably f4v, which is very clear and very small.

In order to ensure that the speed of the preview in the software will be degraded, the clarity at the time of freezing shall prevail.