You can get what some people call a souped up dts....have not used it much since I have the hd-a1, and use the analogs, which I am happy with, but others have claimed it sounds better than regular dts. I think you will get the better DTS out when you select DD+ in the HD movie settings. If I remember correctly the toshiba's will convert the DD+ track to dts then output it on the digital connections. At least that is how it worked on the G1 toshiba's. Also, if you have a 7.1 speaker setup, you can use the outlaw to process the hda2's output with dpliix.