Is it possible to provide MD5 hashes (or filesize) on the files? This would make it easier to verify that the files downloaded correctly.
What happens is that sometimes I download a new series, wait for the 1st one to finish, unzip, download 2nd while reading the first. If 2nd finishes, I download #3, while reading #1. Sometimes, I can get quite far ahead, especially if I'm reading one series and downloading another.
Then, I find out that #3 was bad, and I now have to re-download it, and wait for #3, so that I have continuity.
Not the world's biggest problem, but... 8-)