Hmm one thought that just occurred to me... The drive screws on either side would probably require a little routing into said material in order to get a tight fit... Then again, they could also help you guide the player into place if a couple tracks were, in fact, routed into the sides. Since one is higher than the other, it looks like two carefully-routed grooves on the side rails of the box could be pretty nifty.

Hmmm. Thinking...