Jericho looks awesome..let's hope you get the chance to play it!
Hmmm...do you have enough disk space in the location you're trying to save to?
Also, try another browser to the one you're using.
I tried 6 different sources and 2 different PCs
All on the same network? This could be network related of course....keep an eye on your router/modem when you are downloading this next time..watch out for anything abnormal, such as a break in the power or internet/network connection.