This is a easy project that i did for fun, the final result is good , the most important thing is the raspberry that allow you to use many features for gaming or media player:
Pick up an old cd or dvd drive, open it and remove all the interior parts leaving only the external case.
Measure and do all the necessary cuts, I used extensions for all the conections
Paint, let it dry, close the case and install the normal software, in this case i´m using KODI for movies and Retropie for emulators.
KODI (xbmc) OpenELEC / Exodus
Retriopie (emulator) EmulationStation