Available in iPlayer but can't download

[Clive]

Thank you for replying Marshall, but it does not work for me:

$ get_iplayer 
--url=http://www.bbc.co.uk/iplayer/playlist/p00lfrb3/Alistair_Cookes_America_The_First_Impact/
get_iplayer v2.82+n0-git9503c03, Copyright (C) 2008-2010 Phil Lewis
   This program comes with ABSOLUTELY NO WARRANTY; for details use 
--warranty.
   This is free software, and you are welcome to redistribute it under 
certain
   conditions; use --conditions for details.

INFO: Episode-only pid detected
INFO: Trying pid: p00lfrb3 using type: radio
INFO Trying to stream pid using type radio
INFO: pid not found in radio cache
INFO: Checking existence of default version
INFO: No specified modes 
(flashaachigh,flashaacstd,flashaaclow,flashaudio,realaudio,wma) 
available for this programme with version 'default' (try using 
--modes=flashhigh,flashvhigh,rtsphigh,rtspvhigh,subtitles)
ERROR: Failed to record 'Alistair Cooke's America - 1. The First Impact 
(p00lfrb3)'