Are CD-i discs copy-protected?
No, there is no copy-protection mechanism for CD-i implemented either in software (CD-i titles) or hardware (CD-i players). Allmost all CD-i titles can be copied, and any correct copy of a CD-i title can be played on any CD-i player. A CD-i player can read CD-R discs as if they were normal CDs, they do not need to be modified to accept these discs as is the case with the Sony Playstation. It may however occasionally occure that a discs can not be copied. This has nothing to do with a possible copy protection, but is the result of the layout of the disc.