Miro

Miro is an Internet  player which enables you to :

• Subscribe and manage video and audio podcasts
• Play video files (QuickTime, WMV, MPEG, AVI, Ogg and more)
• Play audio files (OGG, MP3, ...)
  
• Choose to download content from a variety of free channels available in the MiroGuide and anywhere else on the Internet
  
• Save videos from YouTube and other video hosting sites
  
• Subscribe to and download from video and audio podcasts that use Bittorrent links

Miro works on Mac OSX, Windows Vista, Windows XP, and Linux.