Erik Moeller, 23/04/2013 07:43:
(This may be a limit on archive.org's crawler, or it may be a limit on how much content they serve. I suspect it's the former, but will ping them as well.)
In general it's the crawler, but in this case even 480 MB videos are there, except that my connection was closed after about 100 MB. Officially speaking, the reason is https://archive.org/about/faqs.php#28 ; practically speaking, they usually don't care http://blog.archive.org/2012/04/26/downloading-in-bulk-using-wget/
First step would probably be to get them moved to an archive.org collection rather than the Wayback machine. I didn't know about 2005 but I recently saved on archive.org the 2008 videos hosted on some precarious dreamhost domain. https://archive.org/search.php?query=subject%3A%22Wikimania+2008%22
Nemo