I bought a dvd burner and put it in my computer. I changed the jumpers to the same as the cdrw I took out.  
Now I have a dvdrom and dvdrw in computer.  When I put a dvd in dvdrw it doesnt it does nothing, but when I put a cd in it, the cd is recognized and works normally. I also can burn cds in it but not dvds. What am I missing i am sure it is a setting or something similiar.  My dvd rom still works properly.  
I have Win XP So it had the drivers.
Any help is appreciated..
 BLANK CD's arent usally reconise by the computer regulary did you install a dvd-r program?I downloaded a trial version of 1clickdvd and it would also recognize the cds but not the dvd. The software did recognize the drive as dvdrw.  The drive will not play dvds just cd's. I did order a MERO program and expect it in a few days..    Have you tried putting a pre recorded dvd in the drive to see if it detects that?

Try removing the drive and IDE controllers in Device Manager and then rebooting (needs 2 reboots).As above ADVICE and make sure you have the correct driver(s).  Get them from the DISK(s) that came with your drive or download from the manufacturer's website.

Windows may not have loaded the correct ones when first detected.

Dell