In spring 2002, Project Gutenberg’s ebooks represented 25% of all the public domain works freely available on the web and listed in the Internet Public Library (IPL). The output in 2002 was an average of 203 new ebooks per month. In November 2002, Project Gutenberg released the 75 files of the Human Genome Project, with files of dozens or hundreds of megabytes, shortly after its initial release in February 2001 as a work from public domain. 1,000 ebooks in August 1997, 2,000 ebooks in May 1999, 3,000 ebooks in December 2000, 4,000 ebooks in October 2001, 5,000 ebooks in April 2002, 10,000 ebooks in October 2003. EBook #10000 was The Magna Carta, signed in 1215 and known as the first English constitutional text. From April 2002 to October 2003, in 18 months, the collection of ebooks doubled, going from 5,000 ebooks to 10,000 ebooks, with a monthly average of 348 new ebooks in 2003. The fast growth was the work of Distributed Proofreaders, a website launched in October 2000 to share the proofreading of ebooks between many volunteers. EBooks were also copied on CDs and DVDs. As blank CDs and DVDs cost next to nothing, Project Gutenberg began burning and sending a free CD or DVD to anyone asking for it. People were encouraged to make copies for a friend, a library or a school. Released in August 2003, the Best of Gutenberg CD contained 600 ebooks. The first Project Gutenberg DVD was released in December 2003 to celebrate the first 10,000 ebooks, with the burning of most titles (9,400 ebooks). In September 2003, Project Gutenberg launched Project Gutenberg Audio eBooks, a collection of human-read ebooks, as well as the Sheet Music Subproject, a collection of digitized music sheet and music recordings. A collection of still and moving pictures was also available. # 10,000 to 20,000 ebooks In December 2003, there were 11,000 ebooks, which represented 110 G, in several formats (ASCII, HTML, PDF, and others, as is or zipped). In May 2004, there were 12,600 ebooks, which represented 135 G. With more than 300 new ebooks added per month (338 ebooks per month in 2004), the number of gigabytes was expected to double every year. The Project Gutenberg Consortia Center (PGCC) was affiliated with Project Gutenberg in 2003, and became an official Project Gutenberg site. Since 1997, PGCC had been working on gathering collections of existing ebooks, as a complement to Project Gutenberg working on producing ebooks. As explained by Michael Hart in February 2009: “The Project Gutenberg Consortia Center has over 75,000 ebooks rendered as PDF files, and some are really quite stunning. The difference? These files were prepared by other eLibraries, not Project Gutenberg, and are using our worldwide distribution network to be seen.”