Dvd re-writer not being picked up as a dvd re-writer

I have a normal dvd drive and a Dvd re-writer underneath it.
I recently formatted my pc, and i downloaded a programme for a freind, and evertime i put a dvd into it, it says Erase CD, i do it to see what happens..and it continues saying it.
I try draging and dropping and it says "Windows encontered a problem while trying to copy this"
Another weird thing i realised, in explorer it says "dvd rom" when i put a dvd in it, it turns to CD rom.
When i put a actual CD 700meg in, it lets me copy fine!
Ive tryed uninstalling and taking out and putting the ribbon back in and nothing solves it.
The file im trying to copy is 1.2 gig, and it wont pick up DvD's please help, is a
LG, Dual writer, supermulti DvD rw

Thanks in advance

Kyzou

 

After reformatting the PC, you did load all the motherboard drivers again?

Otherwise you may have some issues with the default Windows drivers that would be substituted.

 

im sure i did, but ill check it all through