FYI, this is the only way i managed to get PATA IDE+DVD working on BR:
first device on the PATA cable is the DVD drive, jumpered to slave
second device at the end of the PATA cable is the HDD, jumpered to master

if i jumper them the other way around or switch them around on the cable, BR either wont detect the dvd drive or the HDD at all, or the bios does detect it but the windows installer cant find the HDD.

PS: Ive had the same problems on other boards in the past (especially DFI) and always found that this way of configuring the PATA drives worked flawlessly or was the only way that worked.

hope this helps