The De-specialized editions were so good, I finally bought the (used) Blu-Ray saga set. I haven't listened to the descriptive audio tracks yet, but apparently they are brand new for this set (well, for 2011 anyway).

I may have to give these a listen. It's too bad I don't have any for the non-SE's of ESB and ROTJ... but I am curious how the prequels fare.

I would LOVE to hear the old recordings from SAP of the original unaltered trilogy and Episode I if they still exist anywhere though...