SDDS is not DSD. SDDS stands for 'Sony Dynamic Digital Sound'. It is a derivative of the Sony Minidisc compression scheme if I remember correctly. Sony needs to move toward multi-channel DSD (SACD) on Blu-Ray. I got to hear some multi-channel SACD a while back up at Widescreen Review, and it was really a step up. Of course, Sony needs to adopt a more efficient video codec first. Also, try and work around the protective covers on the discs. If they do those things they might actually win a format war for once.