What you are describing is, in fact, a true disaster for any p2p network...
Why ?
Because it is so 'aggressive'.
Using and wasting enormous bandwidth.
It may be nice for you as the 'taker', but consider how you would feel if you were the 'sharer' and your bandwidth was being hammered away at in such a manner.

There are many, many reasons why you may receive the 'dreaded' "Need More Sources"... Far too many to go into now.
But, remember that this is NOT a grocery store or petrol station where you have a right to assume availability on demand.
This is a hobby... Something that far too many people forget.

btw, in the past 4 days I have D/Led 9 files that I have had pending for over 2 months... If it's a file of some sort that you need within a specific time frame... Guess what ?

Go buy it. Or copy it at the library. Or rent it...
p2p for fun ain't no railroad with a timetable !!!

p.s. If you are finding yourself getting all of these desired files practically on demand through Kazaa, might I suggest that you install a cooling fan for your anti-virus app. ???

__________________
Fusion for REAL!--CDex 1.51--Wackyuses--Bitzi - Check Files Before Download !--.mp3 File Name Change Problems? Try Rename-It!--Alternate PORTS--Avast- Anti-Virus--WindowWasher--IrfanView--PC Pitstop - Test your PC !--Mac OSX Troubleshooting--GO .ape ! - For 'Lossless' Audio Compression--Port :6346 - Test If It Is 'Blocked'--Cole2k Codecs--OldVersion - Newer isn't always better !
Nod32 - Free Virus Scan: Use ESET's Online Antivirus Scanner

Tomorrow's forecast:
Sunni in places, Shi'ite in others...