chmod equivalent for files on mounted cdrom

[Arcady Genkin <genkin@sympatico.ca>]

Hi all!

Can I somehow disable read access to *one* directory of a mounted
cdrom for a user or a group? Something like "chmod 700 \
/mnt/cdrom/some_file" ?

Thanks!
-- 
Arcady Genkin
"... without money one gets nothing in this world, not even a certificate
of eternal blessedness in the other world..." (S. Kierkegaard)