Trouble installing a new DVD drive

I just installed 2 new drives in my system. Sony CRX 320a and Sony DRU 510-a. Windows XP detected the first but not the second. Iā€™m not sure about the master and slave settings, because I was ignorant and did not check them before I installed. Should I just use the same settings as the original 2 drives had? Everything else is the same. :confused:

The jumper settings are very important. On each chain there can of course be two devices. One has to be set to Master and the other to Slave for the devices to work properly.

I would recommend putting the DVD Burner as secondary master, and the other drive as secondary slave.