CD-ROM
Sign in to saveA CD-ROM (, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains data computers can read, but not write or erase. Some CDs, called enhanced CDs, hold both computer data and audio with the latter capable of being played on a CD player, while data (such as software or digital video) is only usable on a computer (such as ISO 9660 format PC CD-ROMs).
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Key facts
- Storage medium.title
- CD-ROM
- Storage medium.logo
- frameless|upright=0.6|class=skin-invert
- Storage medium.image
- CD-ROM.png
- Storage medium.caption
- A traditional CD-ROM
- Storage medium.type
- Optical disc
- Storage medium.capacity
- 650870 MiB
- Storage medium.read
- 780 nm laser diode, 15010,800 KB/s (172×)
- Storage medium.write
- Pressed mold
- Storage medium.standard
- Yellow Book (ISO/IEC 10149)
- Storage medium.owner
- SonyPhilips
- Storage medium.use
- Computer data storage
- Storage medium.extended to
- CD-ROM XADVD-ROM
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Wikidata facts
- Subclass of
- recording medium
- Image
- CD-ROM.png
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- P1889
- compact disc
- P61
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- Aristotle
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Article
23 sectionsContents
- History
- CD-ROM discs
- Media
- Standard
- Manufacture
- <span class="anchor" id="Mode 1"></span><span class="anchor" id="Mode 2"></span>CD-ROM format
- Sector structure
- <span class="anchor" id="XA"></span><span class="anchor" id="Mode 2 Form 1"></span><span class="anchor" id="Mode 2 Form 2"></span>CD-ROM XA extension
- Disc images
- Capacity
- CD-ROM drives
- Laser and optics
- Transfer rates
- Original speed
- Speed advancements
- Physical limitations
- Workarounds
- Speed ratings
- Speed table
- Copyright issues
- See also
- Notes
- References
A CD-ROM (, compact disc read-only memory) is a type of read-only memory consisting of a pre-pressed optical compact disc that contains data computers can read, but not write or erase. Some CDs, called enhanced CDs, hold both computer data and audio with the latter capable of being played on a CD player, while data (such as software or digital video) is only usable on a computer (such as ISO 9660 format PC CD-ROMs).
During the 1990s and early 2000s, CD-ROMs were popularly used to distribute software and data for computers and fifth generation video game consoles. DVDs as well as downloading started to replace CD-ROMs in these roles starting in the early 2000s, and the use of CD-ROMs for commercial software is now rare.