You can create a movie DVD containing a tiny bootable Linux Operating System-GeeXbox.This can play your movies,music on any computer irrespective of whether the computer has an installed operating system or not.
You just have to boot from the DVD media.

You can easily test bootable iso without burning it to a CD and without restarting your computer using MobaLiveCD or Sun Virtual Box.
You can also test bootable CD/DVD in VirtualBox without restarting your computer.