On Thu, 20 Nov 2003, David Brownlee wrote:

> 	I don't think most of them do provide SHA1 checksums of their
> 	content, though it could be very worthwhile running a cheap
> 	size check frequently and a less frequent download everything
> 	check...

An HTTP server will happily tell you if a file has been modified since a
specified date though. You can get the modification time out of an ftp
server too.

-- 
Gillette - the best a man can forget