I don't think so, at least not in any technical aspect. Pretty much everything about the tech was a logical extension of industry trends. It began life as a CD-ROM add-on for the SNES similar to Sega's SegaCD for the Genesis/MegaDrive. Outside the technology, the low license cost and relative ease of developing for it built a sizeable and varied library of games, which I think was a major contributor to its success, but neither of those things strike me as particularly revolutionary.