It says DVD on the Front of the drive?? The specs should also be on the attached label on that drive. Since it is plug and play and on IDE 1 your bios should automatically configure it. That DVDRW should read all current formats. Is it the only optical drive installed? If you have a CDRW installed as well, try removing that drive and then jumper the DVD drive as a single and see if it will read DVD's. If you do have two dirves, I would set the DVD as master and the CDrom as the slave.
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EVGA 680i, Dual EVGA 8800GT'S (650/950), 4 gigs OCZ DDR2 1066, Intel Q9450 at 3.8 Ghz, Koolance Water Cooled, Dual Plextor16x DL DVD+/-RW. Dual WD 250gb 16mb Cache Sata 3.0. 3DMark06 score = 19,168.