PA-DSS is a project mainly written in ..., it's free.
Slides for "PA-DSS" Presentation
"cmlh-PA-DSS_v1.2-ShmooCon_2K10.key" are the slides (in http://www.apple.com/iwork/keynote/ Format) on PCI PA-DSS v1.2 presented at ShmooCon i.e. http://www.novainfosecportal.com/2010/01/06/shmoocon-2010-firetalks/ on 6 February 2010 and published at http://www.slideshare.net/cmlh/padss.
"OWASP_AU_2009-PA-DSS.7z" are the slides (in http://office.microsoft.com/en-au/powerpoint/ Format) in three parts on PCI PA-DSS presented at https://www.owasp.org/index.php/OWASP_AU_Conference_2009_Agenda by http://au.linkedin.com/pub/darren-skidmore/1/804/2b1 and I.