presets.
</p>
<p>
- As last note: every time a video is transcoded, the quality can only get
+ As a last note: every time a video is transcoded, the quality can only get
worse. Hence for the final mastering/<abbr
title="Multiplexing Audio and Video">muxing</abbr> process, one should
- always to back and use the original source of the video.
+ always go back and use the original source of the video.
</p>