If you've tried 2 spindles of singapore made verb dl's and you've tried burning at all the supported write speeds, it's time to consider the drive 'dead'.
To be sure though, put the drive in another pc and check it still fails.
Filter wise, you can try removing these ones:
Upper Class Filter: pwd_2k
Upper Class Filter: GEARAspiWDM
Lower Class Filter: drvmcdb
Lower Class Filter: PxHelp20