The Internet Archive discovers and captures web pages through many different web crawls.
At any given time several distinct crawls are running, some for months, and some every day or longer.
View the web archive through the Wayback Machine.
Web wide crawl with initial seedlist and crawler configuration from October 2010
TIMESTAMPS
The Wayback Machine - https://web.archive.org/web/20110106191724/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/dvd-ram
DVD-RAM (Digital Versatile Disc Random Access Memory) are very much like DVD-RW and DVD+RW however they need to be put into a enclosing cartridge before they can be played, but these will not fit into a normal DVD player.