[sawdust]

hi frend of mine has a toshiba dvd-rw drive (sd-r5112) the problem is that in the last few weeks it starts to burn at 4x and at 5% it drops to 1x and finishes wrigting at this speed the disks work fine after in a dvd/ps2 tried reinstalling/updateing the drivers still the same any ideas is i don't have a clue what the hell is wroung with it the drive is only 6-8 mouths old and does little work he got ritek dvd-r and i tried a few on my system and they were fine burned in around 15 min does he need a film were update?
thanks