I am trying to make my first DVD with Roxio easy CD&DVD burning. I am trying to create a professional looking DVD. When I try to add a movie I get the response add movie operation failed media not editable. I use Sony Vegas Movie Studio 11 to edit my film and create the video in AVCHD 1920X1080-60i output format. What am I doing wrong? What do I need to do to make a DVD?