merge torrents that include the same files
Some people just take a base file add some extra files to it and create a new torrent.
This way the swarm is shattered and you might end up with multiple seperate swarms that don't have the complete file.
Vuze should detect when multiple torrents you add to the download queue share common files between them and use all clients in all torrent swarms to finish the download and reseed to all of them.
You also could save diskspace that way.
https://code.google.com/p/mergetorrent/ is the inspiration for this.
AdminVuze (CEO / Founder, Vuze) commented
Implementation does not save disk space though.