Make sure there is no disc in the drive, then run the update executable file and follow the prompts. Some drive models are very similar so if the update is not able to "find a target drive" please be sure to check that the update you have is the correct one for your drive model.

http://cdr-info.com/Sections/Firmwa...px?DriveId=1707

What the update does:

BDR-205 Firmware update to version 1.09 Supports the following:


Supports the following write stategies: [Ritek 4x BD-R, (DL, and SL-L2H), Umedisc 4x BD-R (SL), and L2H. CMC 6x BD-R (SL) now supports 12x writing]