Hi,
Coolest PCE project one can think of, honestly. And glad to learn it's Spanish, no less. Hope it all ends well for you -- had to log in here after a decade or so (!) just to say thanks for it.
However, even if I mostly read the whole thread I found little to zero discussion about compatibility, which I believe it's a key subject, so let me ask -- do you expect some issues being reported with the time once the people extensively play the CD games (I mean proper ROM images, if that thing actually exists or can be done) or are you confident enough in your own tests? I guess firmware updates are not discarded for this matter?
I'm thinking in Rhea/Phoebe for the Sega Saturn, for instance -- another amazing device but sadly, it's not 100 %-compatible, though the author kindly listened to the userbase and many issues were solved little by little.
Also, this may sound like a silly request, but could an option to simulate the original CD reading/access times be possible? Many people who never had a CD-ROM-ROM system may be interested in knowing how exactly were those originally and in emulating the experience as close as possible at some point. Just wondering, anyway.
As for the necessary MD2 RGB cable thingie -- I think the subject is indeed quite relevant and no wonder many people will be waiting for a final statment on it before deciding the purchase, so in case more opinions are of use since it seems the final product is still to come, I agree that Mega Drive + C-sync SCART does imply non-passive cables, given that SCART is meant for PAL TV sets (in actuality, C-sync was never aimed at PAL TV sets to begin with, but that's not the point we should consider here). Though I'm not sure what's exactly the issue here -- why the cable has to be passive when used with your device? Because it has a built-in amplifier?
(How's the RGB signal quality you get from all the different PCE (modded) models, by the way? Any tests of this somewhere you know of?)