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/20110106201057/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/mp3
MP3 (MPEG-1 Audio Layer-3) is a compressed audio file that is normally one tenth of the size of an audio clip. They produce near CD quality and they are very popular as they are an excellent storage option.