Autofs does not come with usefull default configuration files. /etc/auto.master contains an entry for /etc/auto.misc which has entries for kernel.org/pub and some other useless item. Maybe it should have an auto.mnt with entries for /mnt/cdrom and maybe a commenred entry for /mnt/floppy instead?
/etc/auto.misc does contain a mount point for cdrom, and a commented entry for floppy. Too many people already use /mnt for other things to clobber with autofs.