Unable to play or burn with lite-on rw

Hope someone can help, i’ve recently purchased a dvdrw, it has been working ok untill recently.

The problem i;ve got is it doe’s not recognize any dvd or cd. If i try to burn music or films it keeps on asking me to insert a blank disc.Also when i put a film in it doe’s not open up the dvd or it doe’s not show what is on the dvd when i open my computer.

I can click onto the dvdrw but when it doe’s open there is nothing there.
Is it possible i’ve got a fault with my dvdrw? thanks.Also i’ve tried to install upto date firmare but i get a error message saying

No matched drive detected!
This utility is only for lite-on DVDRW SHM-165P6S DRIVE.

Detected drives :

1-0-0-0 DLite-on SHM-165P6S MSOP
1-0-1-0-E:LG CD-ROM CRD-8482B 1.05
2-0-0-0G:UI3463G IEM 7820 1.0
2-0-1-0-H:UI346G IEM 7820 1.0
And i do’nt know what is wrong.
Thanks Tony.