This will load a mp3 file server side, and stream a portion of it to the browser. It is useful for giving a sound preview of limited duration, without showing the original url of the mp3 file. See comments in mp3_preview.php for where to adjust the preview playing time, and how where to start the preview in relation to the beginning of the file.
Works OK in all my browsers except IE.... now there's a surprise.
To test, just unzip and upload everything to a test directory on your server, and load mp3_preview.php in your browser. This zip file includes the entire get ID3 library for your amusement purposes, but the entire library is not required for the purposes of this demo.