I have "Strange Days" and "Timecop" on DTS laserdisc, and the technology to capture them. (LDP with S/PDIF output, Audigy 2 ZS with S/PDIF inputs.) I just haven't hooked it all together yet.
I also have various SUPERBIT DVDs with DTS, but I assume those aren't as rare, and don't have as high a bitrate as the laserdiscs.