4.2x

hi all jus got a new sony dru 810 m using writex dvds 8 x dvd-r although i select 8 x for writing it takes abt 15 mins for a complete dvd writing. my rig is amd 64 3000+ msi rs480m2 512 mb 80gb sata hitachi+80gb pata seagate. also i'm using nero 7 it shows the actual speed of...