We are sorry for the problems with unstable versions released.
Regarding most of your data being discarded as rubbish, this is most often due to bad connections.
I suggest you contact your ISP and tell them you are having an excess (98%) failure on packets you download.
They can do a simple test by connecting to your modem and determine if the problem is on your end (which means they may need to repair lines to your home/office).
If you are concerned about discussing bit torrent downloads with your isp, then I suggest you try a completely legal download to demonstraight the problem, like one of many Linux distributions, or if you like, try the following fan produced star trek DVD I encoded…