Do each new DLer DL a different segment of the file
 

Well i'm just asking, if you upload a file to A, he starts downloading from the beginning, right? So if B comes in and wants to dl from you, will he start dling from the beginning, or from anywhere? COz i notice that whenever i dl something, when i almost finish dling it the number of hosts drop rapidly.

Plus if B comes in and dls a different part, then B can also UL to A at the same time, thus making the p2p more effective o.O.

just asking.

Partial file sharing is very effective in that regard. I'm not sure if a person necessarily starts from the very beginning of the file to downld. But much more likely if partial file sharing is concerned.

And yes, hosts do drop off with large files toward the end. I saw someone give a good description but can't seem to locate it. And I believe that applies to the idea that since files are not necessarily downlded sequentially, it means the other missing last bits may be spread around.