@DavidinCT - It is indeed easy to hack. Plenty of instructional stuff out there on YouTube. Not that I condone it, and you're only loading backup ROMs of games you already own, RIGHT?
There might be a few that I currently don't own but, chances are I did at one point... I would not full up a system with 200 roms, what is the point as I would only play 25-30 of them on each system ? When we get down to it, classic systems, and retro games, how many of them really have a TON of replay value ?
I have been gaming from the 2600 days, even back then, I had almost every game system. I had over 75 2600 games (never mind the 5200, 7800 games), 126 NES games, 87 SNES and even at home today, I own 5 full size coin-op machines (Crystal Castles, Marble Madness, Asteroids and Ms, Pac and a Star Wars cockpit). I currently have a Xbox one S (22 games), PS 4 (8 games), 360 with about (60 or so games) and even a Wii/WiiU (with about 15-20 games for those)
So about 99% of the games that I would put on the system are games that I actually own
Anyway, looking at RetroPie that works on the Pi (I have used a few of these devices, as at work we have some TVs setup as kiosks on a web page and these work perfect for it and very cheap) I like the interface but, I have a Home theater PC, that even is pretty mid rage but, would be a pretty heavy spec'ed PC.
So, I found emulationstation, it works on WIndows PCs and look just like RetroPie...
Here's a video..
https://www.youtube.com/watch?v=AVQVmsFOclM
Going to work on getting this on my HTPC....thanks for this thread...I think... :-\