A3's Federica Monsone emails me with this message: "Data Domain announced that CommVault, Index Engines and Kazeon have certified its deduplication storage systems for their respective eDiscovery products."

"In the past when companies have been faced with retrieving information for litigation or compliance purposes, the retrieval process was largely tape-based. While indexing tools help streamline this procedure, the process still faces the speed limitations of searching tape."

"By indexing data backed up or archived on Data Domain’s deduplication storage systems, users can now search disk-based archives faster and more reliably."

This logic seems rock-solid and indicates that e-discovery and compliance needs will help drive sales of de-duplication products and deduplicated disk stores (Copan MAID, Data Domain, Diligent, EMC/Avamar, FalconStor, NetApp A-SIS, Nexsan Assureon, etc.) and also of other random-access archive stores, meaning Blu-ray-based ones (JVC jukeboxes) and Plasmon's Archive Appliance.

It's just another nibble away at the once near-universal archive medium, tape.