Dell Inspiron 8600 DVD Reading and CD Burning Drivers

Hi,

    I just recieved a used I8600 with a fresh install of stock win xp pro.  I don't know where I get the dvd drivers or the cd burning drivers.  All i got with it was patches.  I have a DVD/CD-RW HLDT GCA-4040N.  Where can I get raxio for my machine and also get power dvd or the windows media player plug ins.  I looked through drivers but was unable to find what I needed.  Thanks, Sam