Lite on DDW813 replacement Drive

Hi Can anyone tell me where i can purchase a Replacement drive for my lite-on DVD recorder my problem is the disc tray will not open. The model No of the original drive is DDW813S076.

if anyone reads the above please click on this link its the same as my lite on. i have not read it all but i have read so much in a short time trying to find a soloution to my problem but it will give a good insight as to the workings of this machine made under license and badged as other companys product.

You may read here:

thx but the info given is about updating firmwarei dont want to do that, i want to replace the drive

Think! Replacing the drive is useless without the correct firmware applied…