I have had a problem with a lot of my dvd's giving me Region Code Error's on this unit. I called Audiovox tech. support and they sent me an update cd that fixed the problem in 30 seconds. The reason I post this is because I looked all over the web and couldn't find thing on how to fix this. I tried all of the bypass codes and none worked. If you have this unit and need help, don't hesitate to contact me for help. If tech support won't send you the cd, I'll make a copy and send it to you.