master/slave configuration???/

hi there,
what is the best set up of master /
slave:
1st:
hdd
cdrw
dvdrom
and
2nd:
hdd
hdd
cdrw
dvdrom

thnks
dvdrom

Most hardware manufacturers suggest to optimize compatibility and performance by:
connecting the hdd to the primary IDE connector (IDE1) and the CD-rom to the secondary IDE connector, also enable DMA mode.

SO, connect the hdd to the primary IDE as master, a CDRW to the secondary as master, the CD or DVD-rom as secondary, slave.