Create RHEL/FC DVD from CD-ROM
1. down load RHEL/FC .iso files and copy into /opt
2.create mount path
#cd /opt
#mkdir disc{1,2,3,4,5}
3. mount all *.iso to disc* path
#mount -o loop rhel-4-i386-disc1.iso disc1
#mount -o loop rhel-4-i386-disc2.iso disc2
#mount -o loop rhel-4-i386-disc3.iso disc3
#mount -o loop rhel-4-i386-disc4.iso disc4
#mount -o loop rhel-4-i386-disc5.iso disc5
4. copy disc1/isolinux path
#cp -r disc1/isolinux .
#chmod 644 isolinux/isolinux.bin
5. copy .discinfo from disc1
#cp disc1/.discinfo .
6. edit .discinfo add 1,2,3,4,5 that you want
Red Hat Enterprise Linux 4
i386
1,2,3,4,5
RedHat/base
RedHat/RPMS
RedHat/pixmaps

7. make DVD from command
mkisofs -A "RHEL4-U4 x86 AS" -V "RHEL4-U4 x86 AS" \
-o RHEL4-U4-x86-AS-DVD.iso -b isolinux/isolinux.bin \
-c isolinux/boot.cat -no-emul-boot \
-boot-load-size 4 -boot-info-table -R -m TRANS.TBL \
-x disc1/.discinfo -x disc1/isolinux \
-graft-points disc1 .discinfo=.discinfo isolinux/=isolinux \
RedHat/=disc2/RedHat RedHat/=disc3/RedHat \
RedHat/=disc4/RedHat RedHat/=disc5/RedHat


more info
man mkisofs
www.google.com