The drive you want didn´t exist.
There only 3 non-DVD-writer that can read DVD-RAM:
LG GDR 8163
Toshiba SD-M 1912 / Samsung TS 352
MSI X52 (Combo-drive)
I don´t have the X52, so I don´t can say anything.
But the LG and the Toshiba/Samsung are far away from fast.
A very good drive (but without DVD-RAM) is the AOpen 1648 AAP. Fast and not very loud
WD: WD6400AAKS, WD10EALS, WD20EARS, WD10EALS
Hitachi: 7K1000.B 1 TB, 7K1000.C 1 TB, 7K2000 2TB, 7K3000 2TB
Seagate: ST2000DL003, ST31000528AS
Plextor PX 755 1.04
Benq DW 1670 1.03
Optiarc AD 7173A 1.01
Asus DRW 20B1LT 1.00