First of all we tested the MP3 playing capabilities. We tried every kind of MP3 CD you could feasibly acquire or burn: from the standard 74min CD-R with MP3 files in it's root directory, to the overburned 80min CD-RW having MP3 files spawn among several subdirectories. Spread throughout them we included files of several other extensions including ZIP, .RAR or even DOC. Furthermore, we used more than 10 different CD-R brands including Mitsui, Princo, Leadtek, TDK, Kodak, Philips, and Verbatim.