random_id	content_object_id	url_code	bitrate	codec?	url_type	media_type	content_type
1	101	realguide.real.com/music/?	56k	g2	stream	audio	clip
2	103	realguide.real.com/entertainment/?	128k	g2	stream	video	song
3	102	realguide.real.com/sports/?	56k	ra8	stream	audio	sample
4	103	realguide.real.com/movies/?	300k	rv8	stream	video	song