AntcuFaalb, the reason you're having problems working your DTS rips from laserdisc is that DTS on LD has different frame headers than DTS on DVD.
Run your DTS Wav file through DTS Parser, then open the resulting dts file in the hex editor called "xvi32."
Link: http://www.handshake.de/user/chmaas/delphi/download/xvi32.zip
Run this script in xvi32 on your file, then save the file. The script will fix all the frame headers, making the file compatible with regular dts decoders.
To run the script: 1) Choose "XVIscript" dropdown menu. 2) choose "Editor..." 3) Choose "Open" from the "Script" dropdown menu. 4) choose the correct script file (link below). 5) Click "Execute." 6) Close script editor, then save file.