Which version of Roxio Easy Media Creator are you using? I currently have 8 installed and swore by Roxie for a very long time however; I no longer use it to copy DVD's.
In the past I decrypted movies using DVD Decrypter then shrunk them using DVD Shrink then I used Roxio to burn my movie to a DVD.
Since neither DVD Decrypter or DVD Shrink aren't being updated any longer (haven't been for over 1 year), I have started making backups of my movies by first using DVD Decrypter with AnyDVD running in the background. Note AnyDVD is a ripper that is updated very frequently. Next I try to shrink the movie to fit on a single layer DVD-5 disc.
Either way; with or without shrink, I now use CloneDVD 2 to burn my movies to disc. CloneDVD 2 will burn to either a single layer or a dual layer disc.