"Incompatible Medium" error with Vista and DVD Decypter

Hello!

I recently installed an LG bluray writer (WH14NS40) in my Vista system. It reads blank dvds, audio cds, and blu-rays perfectly. It also reads burned dvds that I have previously shrunk using dvd decrypter and dvdshrink (using another dvd-writer).

I have just discovered that it does not read store-bought dvds. VLC player, Windows Media Player, and dvd-decrypter will not recognize the dvds, giving me the error

Device Not Ready (Incompatible Medium Installed)

I am assuming this is a region issue, or some new copyright issue that I am experiencing for some reason since installing the drive, but I have no idea what.
The fact that it reads burned dvds tells me that it's not the dvd-format itself that is the problem. I updated to the most recent LG firmware after experiencing this problem, but the problem remains.

Any help would be most appreciated.

 

Does Device Manager list the current region of the burner?

 

Yes, I changed it to "Region 1," from either "0" or a blank box (I can't remember).



Edit:

The problem is temporarily fixed using the Microsoft "Fixit" tool here:



http://support.microsoft.com/mats/cd_dvd_drive_problems



Unfortunately, once I eject the disc and reload it, the original problem returns.

 

Try the hardware forum at Videohelp.
There is a BluRay sub forum.

http://forum.videohelp.com/forums/4-Hardware

 

Ok, I've posted my question there as well. Thanks.