upon searching for the alternative for keepvid, i stumbled to this cool website called vixy.net. claimed to the online video conversion, i noticed that it is much capable of downloading & converting flv files to avi and mpeg. will that be too cool to you? wanna try one? just click at the link here or the image below fellas!
This service allows you convert a Flash Video / FLV file (YouTube’s videos, etc) to MPEG4 ( AVI / MOV / MP4 / MP3 / 3GP ) file online. It is using a compressed domain transcoder technology (outline in Japanese). It converts FLV to MPEG4 faster and less lossy than a typical transcoder.
When you submit an url, it will download and convert to the video format. Then you can download the converted file.