Mpg2Cut2 http://www.videohelp.com/tools/Mpg2Cut2 looks promising. It throws up various warning messages about my file, but after saving a clip it has preserved the subtitles.
I tried Transport Stream Packet Editor http://www.videohelp.com/tools/TS-Packet-Editor as well but get no Video preview with that.
I tried Transport Stream Packet Editor http://www.videohelp.com/tools/TS-Packet-Editor as well but get no Video preview with that.