Master and slave



i got anther dvd drive put in my computer and running aright but i reformat my hard drive iv got
nec dvd re nd 355oa
optiarc dvd rw ad 717oa
and this hl dt st rw dvd gcc 4522b its this one WATS messing me about it dose not recognize dvd when i put a dvd in
wot i do is but a dvd i wont copying then burn with the other two burners