I will convert any youtube video in avi , mov , mp4 , 3gp or mp3

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I will convert any youtube video in avi , mov , mp4 , 3gp or mp3
Any Youtube video in 1 of the following formats :

AVI (video + audio)
MOV (for mac)
MP4 (for iPod + PSP)
3GP (for Mobile)
MP3 (audio only)