Grass Valley PROFILE FAMILY v.2.5 - Manual (Page 134)

Chapter 3 Using Media Manager
134 Profile Family
Figure 60. Transcode Utility dialog box, Convert tab
7. In the Preview tab, select a video output for the source clip or master from
the Source Video Output box. This allows you to watch the source media
play out on the monitor during the conversion.
8. From the Target Video Output box, select a video output for the target clip
or master. This allows you to compare video quality by watching the target
media play out on a monitor during the conversion, with a few seconds delay
from the source media.
9. If there is media in the list that you have decided not to convert, select it in
the media pane, then click Remove .
10. If you want to delete the original clip or master automatically after it is
converted, click Delete source after conversion . This will save disk space.