I have recently purchased a home system dvd recorder LiteOn LVW5006. I find sometimes the recorded image is blocky or rasterized. Could this be related to the fact that I am using TDK +RW x4 speed DVDs to record on or more related to set machine recording speed. I use SP and EP speed for recording. I would appreciate any help. Also, the machine appears a little noisy when working. Is this normal. Also, does anyone know of any sites I can obtain more info on this type of problems.