I am a newbie who is trying to back up a movie that is 135 min in length. On the DVD+R case it mentions that if I record it in LP mode I can get up to 180 mins of video instead of the standard SP mode of 120 mins. I cannot figure out how the hell this is done please help! I am using a NEC ND-2500A burner along with Nero6 software. Can anyone please tell me how I may accomplish this?