Many DVDs come with both Dolby Digital and DTS. They also have built-in setup menus from which one can select their sound track of preference for listening. However, I have at least one DVD with multiple surround tracks (DD5.1 and DTS5.1) that has no startup/setup menu at all. My DVD player's (Toshiba 6200) audio menu only has one setting for digital sources called "Bitstream" so how does one choose to listen to DTS when the player automatically defaults to DD? From reading the user manuals for the 5700 and 9200, the same condition exists with these players as well. Since all three of these DVD players decodes DD and DTS can anyone suggest why there is no user selectable menu/setting that would provide for selecting one or the other (DD or DTS) for playback? The receiver can only play or decode what it is sent (I use optical connectors). I called a Toshiba CSR and he agreed he could find no way to select DTS as the playback mode unless a setup menu is on the disc. Seems to me that if Toshiba is really trying to be a leader in DVD players, they have really missed an important, significant feature. Since I have owned no other brands of DVD player I cannot say if other players suffer the same fate. In any case, has anyone out there got any comments or solutions? (The DVD is Roy Orbisons Black and White Night).