I was also looking into the AkamaiHDUnmetered stuff. There’s a very englightening post by KSV about the “pvtoken” algorithm in this thread about a Pluzz French service:
http://stream-recorder.com/forum/rec...html#post43761
PluzzDL.py implementation:
http://code.google.com/p/tvdownloade...src/PluzzDL.py
Unfortunately I now understand the PV stands for “player verification”. KSV says it requires both a hash of the player SWF and another key hidden inside the player. It looks like someone would have to get very intimate with the ABC’s flash player to find out the key.