Looking alongside viz and in that directory there\'s various \'zip\' files that have been uncompressed.

The original zip files are left undeleted. Deleting these will recover a good few MBytes and keep things more tidy.

Regards,
Martin

I think they have to actually stay around since the BOINC client would see they're missing and that's an error (i.e. may try to get them again)! As you go through workunits they would get deleted as new versions come in (of course their zip files would stay around).