im using nero enterprise edition, it only allows to burn as slow as 4x, i know that 1x will bring nme a better quality.........i have a sony cdr/rw 2241...i usually burn the whole movie on a disc, should i split it in half, is there a better type of cdr or rw media to use...i use cicero blank cdrs and verbatim cdrws..any ideas why gthe sound is off from the video?