What I found interesting was that the load times seemed to near 2 minutes while the actual round only lasted about 30 seconds. I do like the sega cd version better graphically, it seems a little more refined but don't pay a lot for it.
As far as Mortal Kombat CD, the game IS NO WAY near the arcade in graphic quality. If you want the best graphic version plus the best playable version, the SNES version is your game. The Sega CD version is just slow and clunky. A trade off to slightly more detailed characters and backgrounds then the Genesis version is the animation during gameplay; Since the Sega CD didn't quite boost the genesis raw graphic prcoessing muscle. (Mode 7 effects doesn't do much when your paying for a 299 upgrade)
I have the Mortal Kombat CD (original disc not a copy) and the snes cart. The only thing I can say for the Mortal Kombat Sega CD version is that its value is actually more nastalgic. Takes you back to the myth of the all POWER SEGA CD ROM...muahahahahaha.
You're kidding right? The SNES version plays in slo-mo and had the only thing that made MK1 worth playing removed - the gore. Sub-Zero's spine rip was great fun, but without the fatalities you are left with a shallow, badly animated, poorly balanced excuse for a beat-em-up.
I do enjoy the MK series, but take away the fun of learning fatalities/babalities/friendships and you're left with a very weak competitor for Capcom and their mastery of the genre.