CPRM (Content Protection for Recordable Media) is a copy-protection technology used on recordable media such as DVD-R and SD cards to prevent unauthorized duplication of digital content. It enforces a "copy once" rule, allowing protected content to be recorded to a specific medium one time, after which further copying is cryptographically blocked. Only CPRM-compliant players and drives can read or record such content.

Past questions testing this term · 1 questions

• 2018h30h #84DVD-R や SD カードなどに採用され，デジタルコンテンツを記録メディアに一度だけ複製することを許容する著作権保護技術はどれか。