First: What player gives the best dvd playback quality windvd or powerdvd since I read somewhere along time ago that windvd was better (but a resource hog) then in a later version the quality was cut a bit to save on system resources.

Second: My drive does not currently have a region encoded (never used + was not preset) and I want to fond out a good place to get the bios flash and need to know if because of getting rid of the encoding will any dvds not work since I read that a couple might not