Wow! This could be a really useful tool!
But I just spent a couple hours digging through archived pages of recordingreview, and still can’t find the article I’m looking for. I think it was in Brandon’s blog, but it might also have been in the forum or a separate article - I looked in all three places. Oh well.
Eventually I might try to recreate it from memory, though I doubt I could do it justice. It’s the method I’ve used for mastering ever since Brandon shared it with me 10 years or so ago.
The gist of it is creating a new project in your regular DAW, with each (already mixed) song on its own track, staggered horizontally so they playback in the order you’ll have them on the CD. This allows you to apply compression and other effects to each track, easily compare levels for consistent volume, and set beginning and ending markers for each song as well as pauses between them.