iSkysoft iTube Studio for Mac

"iTube Studio for Mac can download video from YouTube and other websites."

iTube Studio for Mac Overview

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iSkysoft iTube Studio is powerful software that includes the
functions of video downloader and FLV video converter. It
can download online FLV videos from YouTube, Yahoo, Google,
Break, Metacafe, MySpace, Gofish and other video-sharing
sites and convert the downloaded videos to all popular video
formats.

The output files can be played on all video and audio
players such as iPhone, iPod PSP, Creative Zen, PDA. A
functional FLV player is also built in this powerful
multimedia software which helps you enjoy your downloaded
videos more conveniently.

iTube Studio for Mac Key Features
Download video from YouTube and other video-sharing websites
iTube Studio for Mac lets you download online video from a
whole range of popular video-sharing websites including
YouTube, Yahoo, Break, Metacafe, MySpace, Gofish, Youku,
Tudou and other YouTube-like video sites.

Convert Flash videos to all popular video and audio files
It can convert the downloaded FLV videos to MPG, MPEG, MP4,
3GP, 3G2, MOV, AVI, M4V, etc. with 200% super high
conversion speed on Mac OS X. Extract audio from the
downloaded videos to MP3, M4A, WAV, AAC, AC3, OGG, APE.
Support sorts of popular portable players
It supports outputting files which 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.