i think i understand what you mean. you have downloaded three albums from 3 separate torrents. the album file consists of one 70-80 minute MP3 (or other format). when you play this one file back, you get small bits of the entire track playing separately?? this would make more sense that the file data has been assembled incorrectly. if you have downloaded successful other files using the same client, then that is very puzzling :-/ were the three downloads form the same user??
as for ogg, go here:
http://www.dbpoweramp.com/ get the free player and the ogg codec. you should be able to get a .wv codec from the site as well.