Sata Plextor dvd-rw not recognized

I recently bought a sata dvd-rw of Plextor,the model is:PX-712SA,it is not recognized at all from the fedora 3.Neither on the harware browser nor in the dmesg on terminal.My sata HD is recognized and working fine.I would be greatfull if someone help me.Thnx

Check out this link. Might give you some ideas on what to look at.