Ok.. I go to the "Media Properties" box of a video segment in a DVDA project. I select "Track Media", with the intent of replacing one AVC file with another. I click to get the "Change media..." button, when upon clicking that, rather than get the change media menu, I get a totally useless "opening media files" wait, with no option to cancel. I mean, the clear intent is to change the media here... there is absolutely no possible reason to want to refresh the media. This isn't the worst possible bug, but it ultimately winds up wasting hours of time. It needs to be fixed. Thanks.