Thanks for the info Joe, but I should have been a bit more clear: There is no question as to the resolution of the files, but we are using a mixture of 4×3 and 16×9 clips – a great majority of the clips are obviously one or the other (using the 16×9 monitors in Media Composer and 4×3 NTSC monitor externally)but there are occasionally clips that are questionable. If I was in a program such as After Effects I could easily select the clip in the project window and it would display the exact dimensions of the clip (720×480, 853×480, etc.)I can find no such display in the Media Composer environment. Suggestions?