You can use +R media because the BenQ will bitset to -ROM automatically which should play in all your players depending on the media. I would advise Taiyo Yuden +R 8x for you. This media will play on the most players out there even some 7 year old ones like mine.
If you are burning mostly movies, I would advise using DVDDecrypter to rip to your hard drive and then DVD Shrink 3.2 to make an ISO image, then DVDDecrypter to burn the ISO image to your media.
To flash it use WinDWFlash and the latest .cvt file in windows.