Setting DVD region

[Craftish]

I have a small problem: I'm taking a Portuguese class and our instructor periodically gives us Brazillian DVDs to watch. The only problem is then when I want to watch American DVDs it involves switching the region back to United States from Brazil. Is there some way I can do this without burning through the limited number of times (5) my DVD Drive will permit me to change the region before I'm stuck with one?

 

[DEFTS]

You can goto DVDrhelp.com to see if your drive is listed there and flash it to make it region free. Or you can look here and see if you can use one of those programs.