trouble with Nerovision Express 3.0.1.4

Having trouble with the newest version of NVE (yes, I upgraded from an "honest" copy). After completing my menus I try to then render the project. Whether I choose to burn an image or just to a dvd folder NVE hangs about 10 minutes into "Creating menus and transcoding streams." I've rebooted and retried several times with the same results. Any tips? Thanks.

Oh yeah. My source files are a bunch of mpg files I've transferred to my PC after burning them on a Panasonic DMR-E85H. I load them all into the project then merge them to one title for ease of adding chapters (they're the World Series games, and it's easier to add inning chapters if you merge them all first). Adding the chapters and making the menus all went well.