I've asked @twelpforce about it, anyway. Maybe they've got a good answer.
With all of that going on, I didn't get mnuch work done on the video, but I went over my Linux notes a bit and have time to do more with them. I also discovered that DOSBox 0.74 handles the CD audio for games like Lost in Time and Return to Zork... as well as the Gobliiins games and Alone in the Dark 3. That would have made my LPs of those games considerably easier. I would definitely have done the Gobliins 2 bonus video had I been able to do it without needing to separately record and sync the audio. However, this means that the Goblin's Quest 3 CD and Lost in Time LPs will definitely happen. Not that anyone cares, but I've wanted to do both for a long time. This will be awesome. For a certain value of awesome, anyway.
Key Lime Pie is not a good flavor for cupcakes.