But the package is quite large and rigid and thus relatively hard to conceal.

Also when stored like this: http://www.bendbulletin.com/apps/pbcsi.dll/bilde?Site=BB&...

you can put a lock on it as well.

If you're a young whippersnapper, you might not remember the horror that was the CD long box, designed to make compact discs harder to shoplift, back when people stole music that way.

http://en.wikipedia.org/wiki/Longbox