Today I finally was able to get the last 3MB of “#3 Advanced focus 10” Yippee! 
I found a good introduction to the The Monroe Institute, Hemi-Sync, and Robert A. Monroe himself. It’s a great short 2 page introduction. Don’t miss it if your interested in Hemi-Sync:
The Monroe Institute - An Introduction
I also found a helpful Hemi-sync FAQ:
https://www.monroeinstitute.org/programs/hemi-sync-faq.html
Finally, I found an indepth explanation of each of the 6 sessions of Wave I :
Gateway Experience
It defines “Energy Conversion Box” as:
I’m still using “Introduction to Focus 10.” I’ve been practicing while I’m on my back, but I think I’m going to change that. The last time I praticed I actually started to hear myself snore. 
I was able to ignore it for a while, but it became a distraction. 