2 sets of CD-ROM jumpers

I have totally rebuilt a computer and, unfortunately, failed to keep track of the 2 sets of
jumpers on the Philips CD-RW that was in the old and going into the new computer that
I have built. I have made several attempts to adjust the jumpers without success, and
have realized the permutations could be faiirly large. I presume one set of jumpers is
for master/slave and the other may be for speed or some other factor. If anyone has
a simillar CD-RW to the PCRW3210 by Philips, I would appreciate any information on
this. Right now, the drive is being recognized by the computer, but not reading the disc.
-Chuck
New Haven