Yeah.....What he said!!WAV is a much bigger file as it contains all the information, an MP3 is a compressed file so is much smaller. If you want them to listen to in the Ciciv you need MP3 or WMA both of which can be created by Windows media player. Due the the road noise etc in a car 192kbs for an MP3 is adeqaute (you can do 320kbs which is called CD quality) but then you'll get less on a CD.
Cool thanks for that, interesting.As has been said, WAV files contain ALL the data recorded when the track was laid down, including the stuff we can't hear!! MP3's are smaller by about a factor of 12 due to the fact that encoding to MP3 removes the stuff we can't hear, then compares the two channels of sound for bits that are the same. These samey bits are only recorded once (not twice, once in each channel) and only the bits of sound that are in one channel only are kept otherwise. In this way the full stereo experience can be had without storing huge amounts of data.
It should be noted though, that due to the lack of sound below 20Hz (bottom of the human hearing range), MP3's tend to lack bass when played using a sub (which is designed to play sounds below the human range of hearing).
Hope that helps!!