I watch alot of dvd through my computer making use of the surround sound, I have recently been buying some in region 1 format as they are quite hard to come by over here. I have found that I can only change the region of my dvd rw 4 times total before it gets locked and there for have left it in region 1 mode as I have other players available. Could I put in another dvd rw to play the standard dvds or would this cause a conflict in the system? Also would I need any additional wiring/loom extensions. I have one cd rw and the dvd rw fitted at the moment.