​​The Cambridge Crystallographic Data Centre (CCDC).
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I am having difficulty downloading the latest CSD software


​The CSD software suite downloads are made available from a content distribution network that should allow high speed downloads across the world.

If you are experiencing difficulties with the download completing, then you may benefit from use of a download manager which will allow downloads to be restarted if connection is lost.

If the download link is producing a message that the download server is blocked, then you may have a policy in place that limits access to Amazon Web Services, where our CSDS downloads are hosted. In this case please contact support@ccdc.cam.ac.uk in order to obtain an alternative set of download links.