Hello, We have to download the ncbi blast databases for use with blast on our cluster. We don't like the idea of having to download the whole database each time and would like to download only the changes. We found rsync which is a pretty good solution for that. So the problem was to find a server containing the data we wish to download. And there is bio-mirror.net. However on this server I can only find the preformatted databases in a compressed format (.gz). The problem is this one : in fact rsync can't be used at its "best performances" because the databases are already compressed. Thus the transmitted data to update a local version is very high and could be much lower if using rsync with uncompressed databases (by usind the rsync switch to compress data that is being transmitted). Is there any server on which it would be possible to get such uncompressed files (in fasta or precompressed format) ? I couldn't find any with a google. Or do you know a better way to lower the transmitted data ? Thanks Fabien