Please give this telnet command - and post the reply :-
wget -c 'http://o-o.preferred.lhr14s11.v15.lscache3.c.youtube.com/videoplayback?sparams=id,expire,ip,ipbits,itag,ratebypass&fexp=904531,913002,910207&itag=18&ip=86.0.0.0&signature=AB3B4A13B03F0336AA8C4F2C5D5309ED5D408710.1550849E09C3B20E2F43A1E108DCF8EF18CE117E&sver=3&ratebypass=yes&expire=1315886400&key=yt1&ipbits=8&id=91f7da7317c0ec6e&quality=medium&fallback_host=tc.v15.cache3.c.youtube.com&type=video/mp4' -O '/media/hdd/webmedia/Baby.mpg'