Curious question here. I am considering re-doing some movies on my HTPC, switching them from DVD to Blu-Ray copies. The more I started looking into this, the more I realized I don't know how to tell if it would be even worth it. I understand that re-doing The Godfather in blu-ray, isn't really going to make much of a difference. I just don't know when to draw the line. I figure it is probably somewhere around the mid 2000's since that's about when blu-ray came out. Anyone have more insight on this than me?