Today (Sunday) I have just downloaded the same 400MB file in 25 minutes from home. Perhaps we are seeing congestion due to the files being hosted in the US? This is quite common because international bandwidth is more subject to congestion that bandwidth within the UK. I am wondering why we are not hosting the files in the UK or the EU so that we get better download times? talkphysics.org is in the UK, so why not the files?