Just podcasts producing unplayable files

[L Xenakis]

Dear fellow users,

I have been happily using get_iplayer with the WebPVR front end for a
while, for getting radio only, but have noticed recently that all the
podcasts now produce an unplayable file, whereas the standard radio
programming that you have to stream, records fine. Every podcast
appears to download fine, no error messages. Here's an example:

##########################

Recording The Following Programmes

The Infinite Monkey Cage - TIMC: Does Science Need War? 21 July 14
(http://downloads.bbc.co.uk/podcasts/radio4/timc/timc_20140721-1700a.mp3)

INFO Trying to stream pid using type podcast
INFO: pid found in cache
Matches:
220352:    The Infinite Monkey Cage - TIMC: Does Science Need War? 21
July 14, Mon, 21 Jul 2014 17:00:00 +0100, BBC Radio 4, Science &
Medicine

INFO: 1 Matching Programmes
INFO: Checking existence of default version
INFO: podcast modes will be tried for version default
INFO: Trying podcast mode to record podcast: The Infinite Monkey Cage
- TIMC: Does Science Need War? 21 July 14

INFO: File name prefix =
The_Infinite_Monkey_Cage_-_TIMC_Does_Science_Need_War_21_July_14_timc_20140721-1700a
###################################################################################################################################################
INFO: Recorded 27.18MB in 00:00:17 at 13098kbps to
S:\Downloads\Podcasts\The_Infinite_Monkey_Cage_-_TIMC_Does_Science_Need_War_21_July_14_timc_20140721-1700a.mp3

INFO: Downloaded Thumbnail to
'S:\Downloads\Podcasts\The_Infinite_Monkey_Cage_-_TIMC_Does_Science_Need_War_21_July_14_timc_20140721-1700a.jpg'
INFO: ID3 tagging MP3 file
Recording complete

##########################

I have a weird feeling it may have happened when I upgraded, but just
to rule that out I have uninstalled, then reinstalled everything and
still no joy (I'm on Windows 8.1 Pro, using the latest version of
get_iplayer v2.86).

Also, since I'm asking, does anyone know a good way of framing a
search in my PVR list, so it only gets podcasts from after a certain
date, no matter what I try, I can't seem to get it to work. Certain
items such as desert island discs can cause rather a lot of podcasts
to get downloaded otherwise.

Any help appreciated!

Leroy