Hi, I’m new here. I just bought the 3540A to replace my ailing Lite-On. I quickly ran into weird problems. The 3540A reads everything I throw at it perfectly and burns nice and fast. But on certain media I’ve burned with the Lite-On produce a “F:\ is not accessible. Incorrect function.” error. The media is cheap Pengo branded DVD+R. The NEC gives this error with all the DVDs of that brand. It recognizes and reads all other brands burned with the Lite-On perfectly. Also, the Lite-On reads the very same DVDs the NEC doesn’t just fine. I’ve tried it with the 1.01 firmware as well as Liggy’s bitsetting firmware.