General Petraeus: collection

[JarodParker]

20,000 pages doesn't necessarily translate into 20,000 emails. Depending on where and how the documents were obtained, a simple blackberry text message saying "what up!" could be buried under 10+ pages of header information by the internet/wireless service provider.

[Edited to add this] Better yet... Link

Allen and Kelley, who threw parties and other social events involving senior leaders at the Central Command, did exchange “a few hundred e-mails over a couple of years,” beginning when Allen was the deputy commander at the Central Command, this senior official said. But “most of them were about routine stuff.”
The senior official also emphasized that the volume of communications between the two “was nowhere near” 20,000 to 30,000 personal messages. The official said the high page count reported by the FBI may have been the result of printing numerous individual messages that contained lengthy threads of earlier exchanges.