I recently picked up a used DV-05 that I intend to modify. I found a couple of websites that you might find interesting. Rick Shultz's EVS Tweaked high-end audio (www.tweakaudio.com/index.html), avsforum.com ($8 and $200 DIY tweaks for DVD players), Alan M's website (www.community-2.webtv.net/audionutAK/DIYProjects), and Dan Wright's www.themorgue.com website for Pioneer 525 mods. Good Luck, Kurt These might be good places to start.