In the Project Panel, you have a Column for Video Usage, and one for Audio Usage. You may have to either scroll to them, or move them to the head of the list. You can sort on those Columns too. Hope that this gets you what you want.
Thanks for your reply, I can see lots of columns but none that say 'Video Usage' ... is there an option that shows that ?
Note that the Video Usage and Audio Usage columns probably will not be visible by default. To add them to the Project Panel, click on the flyout menu button up in the upper-right corner of the Project Panel, and select Metadata Display. In the search box, type "usage" and add a check mark to the Video Usage and Audio Usage items that appear. When you exit this settings panel, those columns will be added somewhere to the far right in the Project Panel; scroll over to view the column and the hits.
Perfect thanks alot