This has been a long running issue. I'm a fan of these games, and Sega CD was the only place to play them for a time(now just use PSXRearmed for your classic laser disc gaming needs, or DAPHNE).
Road Avenger, Time Gal, and others worked in previous builds, but when Notaz would fix certain issues, it would break other things. One of those being the FMV games. I didn't know you could run this through Ginge, but that seems to be the best bet, as then you can run older builds when the games functioned properly, but I personally just run them in the PSX emu, as they look better, and run better on the PS1 anyways.
Chris