I downloaded RPMs for libdvdcss,
libdvdread,
ogle and
ogle-gui and RPM'd them. When I
ran it, it wanted a device named /dev/dvd, which didn't exist.
By looking at the output of "dmesg", I discovered that the
device name for the DVD drive is /dev/hdc. So I did
as root
cd /dev
ln -s hdc dvd
File->Open disc, and you're off.
Hit "f" to get full-screen mode.