The ogle DVD player
 hh and bjorn started DVD hacking in summer/fall 1999

 Started with MPEG2, also did a source crack of DeCSS

 IFO/NAV file reverse engineering from a Windows test app
 Also helped by 'vobdump'

 Initial IFO docs posted late 2000, libdvdread/ogle in summer 2001

 ogle was the first working VM