Youtube cache ?

["ArioS" <christian@xxxxxxxxx>]

Dear,

is it possible to cache Youtube flv / swf ? i tried but never worked , i 
already increase max cache to 100Mb.

at log , i got this

xx.xx.xx.xx - - [23/Jun/2007:16:14:29 +0700] "GET 
http://sjc-v89.sjc.youtube.com/get_video? HTTP/1.1" 200 504612 
TCP_MISS:DIRECT


any clue ?