Oh right, my mistake.. sorry
Fwiw, I saw DualDisc as a means to an end to get to hear as much surround as possible (there are surround mixes unique to the format).. yes it's a horribly flawed format., nice enough idea, I guess.. pretty lousy execution..
..though non-Redbook compliant CD playback and slot loading troubles weren't the deal breakers for me that I respect they clearly were for many other users.. Dolby only DVD-V and too many titles with poor 5.1 or no 5.1 at all, only "Enhanced Stereo" were equally fatal flaws imho..
.. Sony had the perfect DualDisc all along right under their very noses.. Hybrid Surround SACD