We recommend! Vixy.net is new web online tool which helps you to convert Online Video or youtube video with some simple steps. No need to install and confugure the software. This service allows you convert a Flash Video / FLV file (YouTube’s videos,etc) to MPEG4 (AVI/MOV/MP4/MP3/3GP) file online.
You have to submitt the URL of Youtube Video only, and within a minutes it will download and convert to the video format, and then you can download the converted file. So Download online videos direct to PC / iPod / PSP. It’s free!
prefer to use powerful MelodyCan YouTube Ripper (http://www.melodycan.com/youtube_ripper.html) MelodyCan supports MP4 and AVI, MP3 as output formats for video conversion