Actually, after trying virtualdrive out with both UNZ and SSF emualtors, I found it's mainly a mounting issue with certain cd image formats. CUE/BINs usually mount, but ccd/cue/img/sub and cue/bin's that have multiple bins (redump format) do not mount. I check the log each time, and I can see that the single cue/bin images are mounting, but the others types do not. I guess this was already known? Anyway, for UNZ, both [-VIRTUALDRIVE-] and [VIRTUALDRIVE]:\ work. For SSF, as all my images are redump format, I couldn't get any to mount. With MagicFX I sometimes cannot get it to see the mounted images (this is outside of GameEx), so that one I'll have to investigate some more to find out why that is.