there are some sites you can either take the full vid or just take the audio from it and it will email you the finished file.
Try some searches in google, I prefer the ones that do it all online so you dont have to d/l any software...
I got this email from a mate:
i cant find the website so il just write it out stpe by step.
1.find a boss video.
2. highlight the code in the 'Embed' box, copy and paste it into
notepad or something like that.
3. sorta near the start of the code will be a normal website address
in quotation marks, highlight this bit (without the quotation marks)
and copy and paste it into a new window.
4. the video should now come up in the new window pretty big, on its
own. the address bar will be different to what you pasted in there
now. change 'p.swf' to 'get_video' then press enter.
5. a 'save file' box should come up. click save and save the file as
something, with the flv extension. eg gamesworkshop.flv
6. now, open a new window and go onto
Media Convert - free and on line - convert and split sound, ringtones, images, docs - MP3 WMV 3GP AMR FLV SWF AMV MOV WMA AVI MPG MP4 DivX MPEG4 iPOD PSP OGG WMA AAC MP4 MPC MMF QCP KAR MIDI REALAUDIO FLAC JPG PSD DOC PDF RTF TXT ODG ODP ODS ODT SXW
there will be two boxes near the top of the screen, one for 'File' and
one for 'input format'. click 'browse' next the file box and find your
video. the input format box should automatically change to FLV.
scroll down a bit past the little ads and you will find another box,
'output format'. change this to Quicktime, this will make it ready to
wack it straight onto your ipod.
7. then tick the 'accept terms' box and clivk convert.
once its converted, the screen will change and a 'download now' link
will appear. click this, download it and bobs ya mums brother.
dead easy when you get the hang of it like.
nerdiest thing iv ever written haha. enjoy!