9.1 is 4 releases back so my memory is a little shaky on it. With 9.1 CD/DVD defaulted to DMA off and it needs to be turned on. Note some 10.1 dmesg and fstab output below. Check out opensuse.org for the latest iso's for download.
fragos@Geo:~> dmesg |grep hdc
ide1: BM-DMA at 0xa808-0xa80f, BIOS settings: hdc
io, hdd
io
hdc: LITE-ON DVDRW SHW-160P6S, ATAPI CD/DVD-ROM drive
hdc: ATAPI 48X DVD-ROM DVD-R CD-R/RW drive, 2048kB Cache, UDMA(66)
fragos@Geo:~> dmesg |grep hdd
ide1: BM-DMA at 0xa808-0xa80f, BIOS settings: hdc
io, hdd
io
hdd: LITE-ON DVD SHD-16P1S, ATAPI CD/DVD-ROM drive
hdd: ATAPI 48X DVD-ROM drive, 1725kB Cache, UDMA(33)
Geo:/etc # cat fstab
/dev/hda3 / reiserfs acl,user_xattr 1 1
/dev/hda2 /Sys1 reiserfs defaults 1 2
/dev/hda1 swap swap defaults 0 0
proc /proc proc defaults 0 0
sysfs /sys sysfs noauto 0 0
debugfs /sys/kernel/debug debugfs noauto 0 0
usbfs /proc/bus/usb usbfs noauto 0 0
devpts /dev/pts devpts mode=0620,gid=5 0 0