Big law firms like Paul, Weiss, Rifkind, Wharton & Garrison routinely hire vendors such as Applied Discovery, Inc., to handle the processing of electronic discovery. Processing includes retrieval of electronic documents, mostly e-mail, from what is often a hodgepodge of storage systems. It is both difficult and expensive and requires tremendous computing power.

Paul Weiss lawyers declined to comment on Applied Discovery’s processing of e-discovery documents in Enron Corp. v. Newby. But Andreas Antoniou, the firm’s chief information officer, discussed how the firm typically manages e-discovery.