Vista - My dvd-rw drive wont read disks in vista rc1

Hi i was wondering if rc2 has fixed this problem... from some other forums i
have noticed i am not the only person with this problem... i have an emprex
16x dvd-rw drive that works perfectly in xp but not in vista rc1...it did
work before in beta2. the driver appears to have installed ok from what
control panels says but when i insert a cd or dvd it wont read the disk (no
matter which disk i try) in vista rc1 explorer stops responding... i had to
install vista from the hard disk... everything else works fine except an old
webcam and my bluetooth dongle (no drivers available)... my pc specs are AMD
3500+ 64bit AM2 cpu with asrock nf3-vsta main board with 1gb pc 6400 corsair
ddr2 ram... 1 120gb diamond maxtor hd and 1 80gb diamond maxtor hd, emprex
16x dvd-rw, nvidia geforce 6600 agp 8x graphics card.