I installed a new LG GH22S50 DVD-RW drive in my windows home server, it recognizes the drive but only as CD-R, not as DVD-RW. I called LG support they have no idea.
If the manufacturer doesn't know, I really don't like your chances. :) You can try looking for some drivers for it, but the drivers should be on their website (in which case, they should know about it). I think the only viable option is to return the drive and exchange it, either for the same model (in the hopes that it's just that one that is broken), or for a drive from a different manufacturer.