Amac YouTubeStudio is your own YouTube broadcasting studio, which can download and convert YouTube videos to different video and audio formats for iPod, iPhone, iPad, Apple TV, PSP, PS3, Zune, Xbox360, Blackberry, 3GP mobile phones, MP4 players and many other media players in one stop, and also convert FLV videos on your local disk. Amac YouTubeStudio Supports the latest YouTube site update. features: 1. Download and convert multiple YouTube videos (including HD videos) to AVI, H.264/MPEG-4 AVC, MPEG-4, MP4, DivX, XviD, 3GP, 3G2 and other video/audio formats. 2. Not only convert YouTube videos, but also convert FLV videos on your Mac. 3. Ability to download YouTube videos via proxy server set in this YouTube video converter mac software. 4. Offers a built-in browser to browse, search, play, and download YouTube videos. 5. Drag&drop or paste & copy the URL of YouTube video you favor to this Mac YouTube converter to start YouTube video 'downloading + converting' simply. 6. Ability to set proxy server in the YouTube converter Mac itself. 7. Shows you the Mac YouTube video downloading and converting progress. 8. Allows you to set the downloading speed, max simultaneous downloading and converting tasks, priority of conversion tasks and other options.