Ok, I feel like an idiot now
. I got a RGB-modded PC Engine Duo-r from doujindance literally just a few days ago. His 100% rating on e-bay and what I at least thought to be fair prices must have fooled me hard. Non-modded PC Engine Duo-rs are sold on e-bay for not much less, so I figured with an RGB-mod, SCART cable and region modded it couldn't be such a bad deal.
I must say though, the quality of the RGB-video output itself is, as of now at least, very good in my opinion. It looks extremely colorful and crisp on the PVM I use. I don't have any other consoles custom-modded for RGB, but the output of the PC Engine seems to be better than the stock RGB output of Saturn, PS1 and Super Nintendo. Seeing that bubble-wrapped mess on those pictures I'm seriously worried what I've gotten myself into, though, especially if modders like you guys go so far as to say it's unservicable, which sucks to think about as something is bound to go wrong down the line.
The problem I have had, and which I wanted to register on this forum to ask around for, is that on a couple of the CD Rom2's I have there are sometimes freezes, sometimes the audio skips, and one particular Super CD Rom (Babel) doesn't get past the first logo. Dragon Slayer: The Legend of Heroes 2 plays flawlessly though, or at least I haven't noticed any artifacts as of yet playing it for a couple of hours. All my discs are originals, and from the looks of them doesn't appear to be noticably scratched or dirty. Attempting to clean them with a microfiber cloth for glasses seemed to make things worse too. Since doujindance says he swaps the lense, a new lense shouldn't have trouble reading discs, and Duo-rs shouldn't have failing capacitors, so unless the CDs actually are badly damaged I don't know what to make of it.