Mac, maybe Supermac18? Or did you mean the name of him in real life?
You can try a youtube downloader for mac. I always use wondershare youtube downloader for mac. It's totally free. You can conveniently manage your downloads.
McMasters
iFunia YouTube Converter for Mac is the ideal Mac YouTube downloader and Mac YouTube converter (.flv converter) - enabling you to download and convert YouTube videos to a wide arrange of video formats including MP4, M4A, MOV, MP3, etc, enabling them to be played on iPhone, iPod, Apple TV or Quick Time Player.iFunia YouTube Converter for Mac also doubles as a YouTube HD video downloader and converter. It helps you download and convert YouTube HD video to HD MP4, HD MOV, HD AVI and more.
Youtube
Pinnacle Video Capture for Mac is compatible with Mac.
I don't think so, I have mac and it just doesn't work :(
You can use imovie
u download CLIP EXTRACTOR, then u can download anything from youtube. In addition, converting youtube video to mp3 on Mac, you could try another conversion tool like snowfox total video converter for Mac, which can deal with any popular video or audio formats.
Convert it!
with FireFox plug-in, 100% free.
Watch youtube videos.
Watch youtube videos.