1.Download FLV videos from YouTube and other video-sharing sites to Mac. 2.Automatically detect the internet videos from flash video-sharing sites you opened in both Safari and Firefox. 3.A functional FLV player to play the downloaded videos and your own videos 4.It supports multithreading so that it can download multiple online videos at a time. 5.Provide you with the download history list to let you know what videos you have downloaded in the past. 6.Convert the downloaded videos to MPG, MPEG, MP4, 3GP, 3G2, MOV, AVI, M4V with 200% super conversion speed. Extract audio from the downloaded videos to MP3, M4A, WAV, AAC, AC3, OGG, APE. 7.The output files can be played on iPhone, iPod, Apple TV, Zune, PSP, Xbox 360, PS3, iRiver, Creative Zen, Archos, PMP, Smart Phone, Pocket PC, PDA, Cell Phone, MP4 Player, MP3 player and many other video and audio players.