Hi Buster D:

I will download the Smart Cutter trial and see if that works. But, I need to re-rip the remastered and theatrical DYRL DVDs onto my hard drive.

How would you be up-scaling the remastered DYRL DVD video to 1080p?

I have Video Enhancer software with "Super Resolution" that can use the lagarith codec for an upscale. It expands the DVD video to 10x the original file size.

And then the 2 seconds of DVD video would need to be color-matched to the BD video.

For another audio option, I have the DYRL Drama LP as 4 mp4a audio files. Would you know what software to get the audio stretched and sync'ed to the video?

I haven't found that the Sound Forge audio software has a keyframe function for stretching the audio. Cyberlink Powerdirector suite looks like it has time stretching with keyframes as an audio option.