i want to change the background in my player. its es4308 chip and everthing i've read tells me its a prom chip. which means i can only program it once if i screw up thats it...but i read something about changing the resistors and it will make it a flash or do i have to bye a flash chip? also i scratched off the sticker telling what firmware version it is. can i tell by the other letters on the chip? i think it was a7 or a6 but i'm not sure. and if its all possible how do i burn the new firmware onto a cdr with Nero????thanks.........