Remember the BBC Sound Archive from a while back?
here's how to download them all.
GETLIST=`curl -s http://bbcsfx.acropolis.org.uk/assets/BBCSoundEffects.csv | awk -F '"' '{ print $2 }' |
awk -F '.' '{ print $1 }' | grep -v location`
for i in $GETLIST; do
wget http://bbcsfx.acropolis.org.uk/assets/$i.wav
done