There are many ways to play sounds and music over the Internet -
AIF or WAV files, RealAudio, Quicktime Audio only movies, Shockwave
audio, MIDI, MP3. Most require a plug-in or special player. Some need
a special server.
Comparisons - here are the same voice
and music recordings presented in Shockwave, RealMedia, QuickTime
and Windows Media formats so that you can compare file sizes, sound
quality, download times, and interfaces.
Christmas Music 2002 - here's a nice
collection of classic Christmas songs in MP3 file format. You can
listen to them or download them for use in your favorite mp3 player.