Which term describes a read-only memory medium used in high-definition video discs?

• A. BD-ROM
• B. BD-R
• C. BD-RE
• D. DVD-ROM

Answer: (A)

Blu-ray disc formats distinguish between read-only and writable media. The term described here is the read-only form of Blu-ray used for distributing high-definition video. That means the data is pre-pressed during manufacturing and cannot be erased or rewritten by the user, which is ideal for movies and other HD content sold as discs. The other Blu-ray types are write-once (BD-R) and rewriteable (BD-RE), which are meant for recording your own content. DVD-ROM is a standard-definition disc format and isn’t the HD Blu-ray read-only type, so it doesn’t fit the scenario.