Xtreme Media Player is a nice media player. A handy, most easy to use, cross-platform media player. Beging developed in Java will most likelly work on all systems.
The fact that you can listen to a lot of audio formats will certainly appeal to the user. Also this application offers you the posibility of reading the tag info which also is a plus.

Xtreme Media Player Features:
player
1. support for different audio formats: mpeg audio (mp3), ogg vorbis, flac, speex, wav, aiff (aifc, aif), au (snd).
2. support for playlist formats like xspf, m3u and pls.
3. remote music playback via url.

tags
1. read general tag info from diferent audio formats (title, artist , album, genre, track number, year, comments)
2. read specific tag info depending on the audio format
3. retrieve current song title from shoutcast streaming radios

interface
1. player control panel (play/pause, stop, previous, next, volume controls)
2. playlist manager panel with drag and drop support
3. multilanguage support (English, Fran ais, Italiano)
4. skinnable interface
5. swing based graphical interface
6. keyboard shortcuts
7. interaction with Microsoft Intellitype commands (Windows only)

visualisations
1. scope
2. spectrogram
3. spectrum bars
4. volume meter
5. waveform

update
* auto-update on application startup or at user request

The license of this software is Free, you can free download and free use this media player software.