Do you want to listen audio CDs while traveling but also have a huge MP3 collection? The solution is the Dual Music Player (DMP).
DMP is just concept design for a portable music player which supports CD and MP3 files. See the images below for details.
You can use the MP3 player as you normally would and when you want to listen to CDs open both sides and insert your favorite CD and you got yourself a CD player.
This tech gadget is the answer to all the people which loved the portable CD players and now use the Mp3s but they have a huge number of CDs.[Future of Gadgets]