AAC audio: MP3 transcoding as backup option

[bat guano]

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>
> For anyone interested, I've made a version of get_iplayer with an option to transcode AAC audio to MP3. 
>...
> If anyone would like to test it, please have a go. To force MP3 transcoding, add '--aactomp3' to the command line 
> _______________________________________________

Hi dinkypumpkin
Your version works for me with Ubuntu.
It's a good idea to have your mp3 and Nick's m4a builds available for people who want to use those options.

General
Complete name                    : Bells_on_Sunday_-_13_03_2011_b00zd8f3_default.mp3
Format                           : MPEG Audio
File size                        : 2.75 MiB
Duration                         : 3mn 0s
Overall bit rate                 : 128 Kbps
Album                            : Bells on Sunday
Track name                       : 13/03/2011
Performer                        : BBC Radio 4
Description                      : The bells of St Olaves, Hart Street, London.
Recorded date                    : 2011
Comment                          : The bells of St Olaves, Hart S

Audio
Format                           : MPEG Audio
Format version                   : Version 1
Format profile                   : Layer 3
Mode                             : Joint stereo
Duration                         : 3mn 0s
Bit rate mode                    : Constant
Bit rate                         : 128 Kbps
Channel(s)                       : 2 channels
Sampling rate                    : 44.1 KHz
Compression mode                 : Lossy
Stream size                      : 2.75 MiB (100%)