I recently installed homebrew, downgraded to 3.2U from 3.4U and installed the Divx for end users so that I could run mPlayer. Since then, I had to upgrade my CIOS to 3.3U to run both Rock Band and Wii Fit (which I paid close to $200 for the pair, so since a DVD player is much less than that, I abandoned my DVD efforts). Fortunately, it only had to upgrade to 3.3U for Rock Band and Wii Fit toby tiktok4321 - Homebrew General