i was wondering if there was a computer dvd burner that can make a exact copy of a real dvd. i looked around, they all mension about being able to burn regular cds, and movies as dvds, but they never said if it could make a copy of a real dvd. If there is one, can you point me in the right direction to where its located?? another question is which is better, a computer dvd burner or a standalone.