A system is provided that includes a plurality of clients and a server capable of assigning the plurality of clients to at least one group for the transfer of content to the server and/or from the server. The server is capable of assigning at least one of the clients based upon a size of the content, a transfer speed, and a probability of transferring the content without experiencing an interruption in the transfer. In this regard, the server can also be capable of collecting statistical data relating to the transfer speed and probability to thereby determine the transfer speed and probability. After assigning the clients to the group(s), at least one of the clients can be capable of downloading content from, or uploading content to, the server based upon the group(s).