> 
> That's not what the manpage says about it (unless you run mkisofs on a
> Win32 system... in that case, everything does get 555). The manpage says
> that any files that have any execute bit set will get 555. Otherwise,
> they get 444 (and that's how it works for me).
THANK YOU!!!!

-o nojoliet solved the problem..

but in my opinion netbsd should use rockridge in preference of joliet when
both is available.