Ok, so new advice
I would recommend taking her CD and uploading the music to iTunes. That way you can transfer it all to your iPod or phone or MP3 player, whatever you happen to have. That way you can travel with it easier than bringing along the actual CD and/or CD player. those iHome docking stations in the resort rooms are really nice systems with pretty decent sound. Or you can do what we do, buy a small speaker that plugs into your phone... I have this one I travel with:
I take this with me on all my travels. It's great for hotels, outdoors, pretty much anywhere.