I am having the same problem that many others are having with their Lite on DVD writer.
Getting Ilegal Disc
I have attempted firmware update but get warning about wrong drive (BGS4) :a
Have checked transfer mode and its "dma if available"
Unistalled and re-installed device in device manager
Using both TDK and Fugi discs with same errors
tried omni patch and eeprom
I can copy with verbatum and have used Fugi in the past with excellent results
I can post the error if needed