Have a custom build pc I bought APPROX 18months ago, running Windows 7 service PACK 1.

As of recent my optical disc drive (LG BH08LS20) is refusing to play blu-ray discs but still plays games and ordinary DVD's. Updated the drivers for most, TRIED with CyberLink and VLC player. VLC says "Your input can't be opened:VLC is unable to open the MRL 'dvd://D:\'. Check the log for details.". Still have MANUAL and disc for the drive, don't know where to start. CyberLink BD Advisor says pc is good to play BDs aside from graphics card driver and current service pack installed.

Thanks in advanced if anyone can help out.

JVLC Media Player isn't able to play Blu-Ray's by default, is it?
Which version of Cyberlink are you currently using?Try this link http://www.tomshardware.com/forum/249998-32-bh08ls20-drive-burner-problemsCouldn't sworn I've blurays on VLC by default, maybe not and I'm just being a tool.
Pretty sure I updated cyberlink lastnight, as I threw my LG disc in the drive to see if that did any good, just installed more cyberlink junk than was required as I'm not a big fan of cyberlink, it's a real ugly software. Plan is; i) unistall everything cyberlink related. ii.) unistall optical disc drive. iii.) unistall graphics/video card. and then re install them all. Thats with the help of you guys, I've never uninstalled any hardware.

I presume I'd go about it - right click My Computer, properties> Device Manager > double click DVD/CD rom drive> right click drive and unistall.

I'm sure I've got the discs for both drive and graphics disc (Super Multi Blue Install Disc for Windows, BH08N/LS20 and MSI afterburner graphics card performancer booster driver and utility)