It’s been a while, but if memory serves, you can’t make a DTS CD from DVD .dtswav files and just burning a disc with ImgBurn.
The dtswav files are for DVDs, not DTS CDs. You should check the DTS CD workshop threads here.
Basically, you start with individual 16 bit / 44.1 KhZ files for each channel and need to convert them into the proper DTS format for a DTS CD. Once you’ve done this for all the songs for the disc, you can use a basic CD burner program. You also need 2 seconds of silence before encoding on track 1. Otherwise, you’ll miss two seconds of the first song during playback.
You can extract tracks from a commercial DTS CD and burn with a regular CD burning program. But to create a proper DTS CD requires the right program, with right files in correct format. Check the QQ archives.