You would be learning everything much quicker if you relied on Google as well. Like the odds of getting a proper rip at only 578MB size is slim to none. I would go as far as say anything below 686MB i.e 700 muinus 2% will be a waste of time 99.9% of the time.
I would recommend you read through this also
http://www.gnutellaforums.com/limewi...ind-music.html While it says music, it's just as much a guide on how to use Limewire. Also for movies, check out the link at the very end of first post. Limewire isn't all that great for movies.
Also here is a lot more about formats, codec, players etc.
http://www.gnutellaforums.com/tips-t...p3-fixers.html