here we have:
all of this types:
TODO: something like this; wget -r/lynx[,,,] "http://s23.org/wiki/Recent_audiofiles" ... until space in mp3player full / podcasting (i hate this word) - script
mp3[edit]
<rss>http://phlow.net/podcast.xml</rss>
<rss>http://del.icio.us/rss/tag/system:filetype:mp3</rss>
ogg[edit]
<rss>http://del.icio.us/rss/tag/system:filetype:ogg</rss>
wav[edit]
<rss>http://del.icio.us/rss/tag/system:filetype:wav</rss>
wma[edit]
<rss>http://del.icio.us/rss/tag/system:filetype:wma</rss>