my a104 won't read dvd-rw ?

[mad4batmans]

having trouble with my pioneer a104,it can burn everything from cd-rw/cd-r and dvd-rw,(not tried dvd -r yet).

and can read all my dvd-rom films and cd-rw/r

but it won't read my tdk back-up data dvd-rw.

i got the latest firmware after reverting back to old one cause i thought 1.33 might be prob (went back to 1.31, now at 1.41 )

can anyone help me out with my little prob,am hoping it not a ****ed laser ! lol

thanx in advance