i need help downgrading my kh27 firmware to fh04 firmware so that i can burn dvd-r discs . i have already formatted my comp twice and it still didnt work. when i try to flash it to a PHILIPS DVDRW824DP Firmware it says: Linear Check Sum = 4F3C
Rotated Check Sum = 5A65
Check Sum match !!
Don’t turn off the power!!
======== FAIL 1========
i have contacted hp. they keep on asking why do you want to downgrade it. they were no help. some1 plz help me