Hyaz all...ill try an keep this simple
I had an older dvd writer 4x write max i think and i got rid of it and bought a liteon 1633 16x write etc
on my old writer i had made some data backups onto the datawrite classic 8x dvd-r
s i had they burnt and played back perfect......on the OLD writer ;(
in the new writer they just spin and spin....it tries to read the header etc but cant..i really need to get 2 these disc`s
any suggestions 
BTW i have flashed the liteon with the latest firmware at present BSOR i think and was told i cannot backwards flash the drive now....is this true?