"can I play a dtsCD or dtsLD on my LDP, pipe that into the box, record it as a .WAV, burn that to a CD, put that in my LDP again, run it to my reciever, and get dts?"
I don't know a great deal about home theater equip, or converting to another type of media. That said I don't think you can get that very last part, i.e. 'and get dts'. I would think once you convert it to a .WAV file, you are essentially downgrading the audio to 2 channel 16 bit 44kHhz stereo. You can't take that sound and convert it back to a DTS format and get what you originally started with, i.e. the DTS sound from the DVD or LD at it's original bitrate.
Here's something a little closer:
http://www.partsexpress.com/pe/showd...number=180-970
But this is used to convert analog sound to digital. I don't think that's going to help you.
You'll love this nest link. This guy built his own digital to analog converter:
http://sound.westhost.com/project85.htm
That brings about another question....what type of connection do you have for your SPDIF?
I think I found what you need, not positive though, take a look:
http://www.m-audio.com/products/en_u...2496-main.html
Hope that helps.