are u downloading over browser or over a torrent? if you're downloading over a browser i highly suggest NOT using google chrome to do it so cuz i had alot of servers before dl'd by chrome and getting corrupted data, if u still having problems go download it over torrent, doesn't take long it's alot of seeders there just for your faster dling and if u don't like torrents Mozilla/Opera are kinda the best ones for non corrupted data browser downloading.