A "podcast" (mp3 player really) ubb code tag is:
array( "#\[podcast\]([a-zA-Z0-9-_.&:/]+)\[/podcast\]#i", '<embed src="http://www.undergroundnews.com/forum/MP3_Player/mp3player.swf" width="425" height="42" bgcolor="#000000" quality="low" menu="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="file=\1&autostart=false&backcolor=0x000000&frontcolor=0xFFFFFF&lightcolor=0xFFFFFF" />' ),
It however reuires that you download the
FLASH MP3 PLAYER and upload the mp3player.swf file to your webspace and (please do this as i don't want to mirror the file for you) link to it as the embed src section of the ubbcode above.
Also, for those of you wondering "will it lag the podcast/audio file streaming it like that?" and the answer is no, I played a 10minute podcast in real time (I have the flash file set to low quality so it'll cache the content rather fast)