Out of business for awhile now.. I'd guess 90% or more CD-Rs made now are CMC. Ritek might still make some. There is also falconrak in UAE making them. At this point I am curious if anyone in Japan is still doing it... Does Memory-Tech in japan make recordable media??
Taiyo Yuden sold their process and tooling to CMC, and they're now sold as "CMC Pro" discs. I previously used JVC branded Japanese Taiyo Yuden discs. I switched to CMC Pro when I ran out, and haven't noticed any difference in quality.