This is a sample metaroll:
<?xml version="1.0" ?>
<!-- Metadata Simple Syndication -->
<metadata version="1.0">
<owner>RebelGeekz</owner>
<published>2004-02-07T10:00:00-05</published>
<updated>2004-02-07T10:00:00-05</updated>
<link>http://geekswithblogs.net/rebelgeekz</link>
<music>
<favorites>
<artists>
<artist name="U2" genre="Rock" country="Ireland"/>
<artist name="Britney Spears" genre="Pop" country="USA"/>
<artist name="Avril LAvigne" genre="Pop" country="Canada"/>
</artists>
<albums>
<album title="The Joshua Tree" artist="U2" year="1987"/>
<album title="Rattle And Hum" artist="U2" year="1988"/>
</albums>
<songs>
<song title="Where the streets have no name" artist="U2" genre="Rock" link="mymusic/mysong1.mp3"/>
<song title="With or without you" artist="U2" genre="Rock" link="mymusic/mysong2.mp3"/>
<song title="Beautiful Day" artist="U2" genre="Rock" link="mymusic/mysong3.mp3"/>
<song title="Bullet the blue sky" artist="U2" genre="Rock" link="mymusic/mysong4.mp3"/>
</songs>
</favorites>
<collection>
<artist name="U2" genre="Rock">
<album title="The Joshua Tree" year="1987">
<song title="Where the streets have no name" track="01" link="mysong.mp3"/>
<song title="another song" track="02" link="mysong.mp3"/>
<song title="another song" track="03" link="mysong.mp3"/>
<song title="another song" track="04" link="mysong.mp3"/>
</album>
<album title="Rattle and Hum" year="1988">
<song title="Desire" track="01"/>
<song title="another song" track="02" link="mysong.mp3"/>
<song title="another song" track="03" link="mysong.mp3"/>
</album>
</artist>
<artist name="Britney Spears" genre="Pop">
<album title="Unplugged" year="2004">
<song title="Toxic" track="01"/>
<song title="another song" track="02" link="mysong.mp3"/>
<song title="another song" track="03" link="mysong.mp3"/>
<song title="another song" track="04" link="mysong.mp3"/>
</album>
</artist>
<artist name="Avril Lavigne" genre="Pop">
<song title="Skater boy" track="01"/>
<song title="another song" track="02" link="mysong.mp3"/>
<song title="another song" track="03" link="mysong.mp3"/>
<song title="another song" track="04" link="mysong.mp3"/>
</artist>
</collection>
</music>
<videos>
<favorites>
<video title="Sixth Sense" genre="Suspense" year="1995" director="" length="2hrs 30mins" link="myvideos/video1.mpeg" />
<video title="Start wars" genre="Sci-Fi" year="1989" director="" length="2hrs 30mins" link="myvideos/video2.mpeg" />
</favorites>
<collection>
<video title="Sixth Sense" genre="Suspense" year="1995" director="" length="2hrs 30mins" link="myvideos/video1.mpeg" />
<video title="Start wars" genre="Sci-Fi" year="1989" director="" length="2hrs 30mins" link="myvideos/video2.mpeg" />
<video title="Gladiator" genre="Adventure" year="1999" director="" length="2hrs 30mins" link="myvideos/video3.mpeg" />
<video title="more videos..." />
<video title="more videos..." />
<video title="more videos..." />
</collection>
</videos>
<pictures>
<favorites>
<picture title="Britney Spears in all four seasons" format="jpeg" date="2001/01/01 08:30:00" size="12345" link="myporn/pic01.jpeg" />
<picture title="Avril Lavigne in all four seasons" format="jpeg" date="2001/01/01 08:30:00" size="12345" link="myporn/pic02.jpeg" />
<picture title="Mandy Moore in all four seasons" format="jpeg" date="2001/01/01 08:30:00" size="12345" link="myporn/pic03.jpeg" />
</favorites>
<collection>
<album title="Wedding Pics">
<picture title="Britney Spears in all four seasons" format="jpeg" date="2001/01/01 08:30:00" size="12345" link="myporn/pic01.jpeg" />
<picture title="Avril Lavigne in all four seasons" format="jpeg" date="2001/01/01 08:30:00" size="12345" link="myporn/pic02.jpeg" />
<picture title="Mandy Moore in all four seasons" format="jpeg" date="2001/01/01 08:30:00" size="12345" link="myporn/pic03.jpeg" />
</album>
<picture title="more pics..." />
<picture title="more pics..." />
<picture title="more pics..." />
</collection>
</pictures>
<books>
<favorites>
<book title="Rise and fall of an empire" genre="History" author="" year="1998" link="mybooks/book01.pdf" />
</favorites>
<collection>
<book title="Rise and fall of an empire" genre="History" author="" year="1998" link="mybooks/book01.pdf" />
</collection>
</books>
<games>
<favorites>
<game title="HALO II" genre="Action" company="Microsoft" year="1998" rating="PG" link="mygames/game01.jpeg" />
<game title="HALO III" genre="Action" company="Microsoft" year="1999" rating="PG" link="mygames/game02.jpeg" />
</favorites>
<collection>
<game title="HALO II" genre="Action" company="Microsoft" year="1998" rating="PG" link="mygames/game01.jpeg" />
<game title="HALO III" genre="Action" company="Microsoft" year="1999" rating="PG" link="mygames/game02.jpeg" />
</collection>
</games>
</metadata>