</p>
<p>
-Not all codecs can be packed into a given format. For example the 'mpeg' format is limited to mpeg2, mpeg4 and mp3 codecs (not entirely true). DVDs do have stringent limitations as well. The opposite would be .avi; pretty much every audio/video codec can be contained in an .avi file-format.
+Not all codecs can be packed into a given format. For example the 'mpeg' format is limited to mpeg2, mpeg4 and mp3 codecs (not entirely true). DVDs do have stringent limitations as well. The opposite would be .avi; pretty much every audio/video codec combination can be contained in an avi file-format.
</p>
<p>
<h2>Ardour specific</h2>
<p>
-Ardour supports a wide variety of video file-formats and video-codecs. More specifically, ardour actually does not support any video at all but delegates handling of video to <a href="ffmpeg.org">ffmpeg</a> which supports over 350 different video-codecs and more than 250 file-formats.
+Ardour supports a wide variety of video file-formats and video-codecs. More specifically, ardour itself actually does not support any video at all but delegates handling of video files to <a href="http://ffmpeg.org">ffmpeg</a> which supports over 350 different video-codecs and more than 250 file-formats.
</p>
<p>