AVS Video Editor Preview issues I receive many requests concerning some inconveniences using AVS Video Editor preview. In this post I'd like to to draw up recommendations to tackle such problems. 1). Preview quality is not good (image is blurry, etc). Actually, by default AVS Video Editor creates cache for large video files after importing them, and playback the cached file on the preview, so the editing process may be more convenient. But, the preview quality does not influence anyhow the output video file quality. It is possible to change the quality of the video preview both on the timeline and on media library by clicking on the Edit button on the top toolbar - choose Settings - Preview section: choose "High (Slowest)" in "Quality" drop down box to get the best available quality for the timeline video playback. Please note that processing/editing speed will be lower. If you check the option "Use original format in media...