Can I use CD-R or CD-RW discs on all CD players?

In most cases, CD-R (Recordable) discs can be used on all CD players, but compatibility may vary depending on the specific player. CD-RW (Rewritable) discs, however, may not be compatible with all CD players, particularly older models. It’s best to check the user manual of your CD player or consult with the manufacturer to determine compatibility before using CD-RW discs.