How do I use pid recursive?

[Steve]

Is anyone using get_Iplayer on a raspberry Pi?

This is my current setup:

(downconv.sh)
/usr/bin/perl /mnt/usb/Iplayer/get_iplayer --pvr 2>&1 | tee 
/mnt/usb/Iplayer/Logs/Gip-Log1.txt
/mnt/usb/Iplayer/avconv.sh
mv /mnt/usb/Iplayer/*.m4a -f /mnt/usb/Iplayer/m4a


(avconv.sh)
for f in *.m4a; do avconv -i "$f" -acodec libmp3lame -ab 256k 
"${f%.m4a}.mp3"; done

This is the only way I can get playable mp3's on the pi, it wont seem to 
convert to mp3 internally.
I've been using GIP for years on my main machine and it is the same 
setup. Am I doing something basic and stupid to get this problem? I dont 
mind running the two scripts as it mainly runs when I'm asleep anyway, 
but I'd like to do it a bit more elegantly if possible ie all within 
get_iplayer.
Cheers
Steve