FLV YouTube Power Batch Downloader - Version 5.9.80.102 FLV YouTube Power Batch Downloader is a powerful, easiest and fastest FLV downloader and converter. With this util you can download videos from YouTube and convert it to AVI movie and video with excellent output quality. Avi files then can be played in Windows Media Player or other standard multimedia player. With integrated advanced encoder, it is faster than other FLV to AVI Converter software and create outputs with superb Video and audio quality.