A recommended method to download 2.8.2 is via BitTorrent. BitTorrent offers you the assurance that the file you are attempting to download will download without any errors. When using BitTorrent please be aware that your download may start off slow but later on pick up the pace as more and more 'peers' (users) contribute to the swarm (everyone who is downloading).
It is recommended that once you have finished downloading the entire file that you become a seed. Seeds are essentially users with the entire file and have the ability to offer (upload) any part of file to others to assist them in downloading.