[oclug] Apache + CDROM under webroot = bad idea?

[Brian's Linux Box]

Hi All	
My webserver was running shy on drive space and I had a CD-R full of 
neat files I wanted to share.
In a flash of brilliance (please - don't laugh so hard) I fired up the 
keyboard and typed

mount /dev/cdrom /var/www/html/graphics
and voila - 30% more files without taking up any harddrive space.

I'll have to alter the fstab to make it permanent but before I did that 
I thought I'd poll for comments.

Performance issues aside  (yep - she's a 2x CDROM!) are there any 
security risks/other concerns you might know of from a stunt like this?

Brian