I have used Kunaki (1 off or 100 off) for making of CD's.
https://www.kunaki.com/ For $1 - $1.50 (USD) per including the jewel, the cover, etc., it's way cheaper if you have buy additional hardware to 'manufacture' them. As they are a manufacturer, they will produce on demand as well. By default, it is redbook compliant.
(I'm not affiliated with them in any manner - just used this service before with good results).