Size is not important. The Cowon iAudio D2 is the first mp3 player with touchscreen in its size (78.0 x 55.4 x 16.6 mm). Its size doesn't effect the quality of the video's and photo's. The quality is also great based on the 1,6 million colors the screen can handle. The D2 can be bought in 2 versions: 2GB or 4GB and can be maxed by using an SD or MMC card.