Anything past a year of use makes it more likely it's just another failed drive. As a test, try it in another PC.
Keep in mind that I find desktops with dual BD/CD/DVD drives with no air gap and these tend to get toasty and fail sooner than expected.
I have a BH10LS38 (BD-RE) and CH10LS20 (BD-ROM) drive installed. The BD-ROM drive will read anything I put in it and successfully write DVDs and CDs, which is helpful as it rules out any bad discs as being the problem.
The BD-RE drive will read CDs and DVDs just fine, but won't write anything successfully.
When I put a BD in for it to read, it will sit there pondering over it, and when I try to access it in explorer, explorer crashes and I have to restart the explorer process and get Device Manager to search for the hardware again (which then re-discovers the drive, fresh for another breaking).
I've updated the firmware for the drive from 1.00 to 1.03 - no change. I've also tried looking for the latest driver, windows goes 'nah already got it' and says it's a typical CD/DVD/BD drive. It looks like it's using the same driver for the working BD-ROM.
Everything is pointing towards a hardware fault which is REALLY not what I want to hear. Just wondering if anyone here has any suggestions or had a similar experience?