GD-ROM

E388059

high-density optical disc optical disc format

GD-ROM is a proprietary high-density optical disc format developed by Sega for distributing games and software, most notably used with the Dreamcast console.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (2)

Label	Occurrences
Gigabyte Disc Read-Only Memory	2
GD-ROM canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T3778151 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: GD-ROM
Context triple: [Dreamcast, mediaFormat, GD-ROM]

A. CD+G
CD+G is a compact disc format that stores low-resolution graphics alongside audio, commonly used for karaoke and simple visual displays.
B. MiniDisc
MiniDisc is a magneto-optical disc-based digital audio format introduced by Sony in the early 1990s, known for its portable, rewritable, and durable design as an alternative to cassette tapes and CDs.
C. DVD
DVD is an optical disc format widely used from the late 1990s for distributing movies and other digital data, offering higher capacity and quality than VHS tapes but less than Blu-ray Discs.
D. Sega CD
The Sega CD is an add-on for the Sega Genesis console that introduced CD-based gaming with enhanced audio, full-motion video, and expanded storage for more complex games.
E. LaserDisc
LaserDisc is an early optical disc video format that provided higher-quality analog video and audio than VHS tapes and was popular among home theater enthusiasts before the rise of DVD.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: GD-ROM
Target entity description: GD-ROM is a proprietary high-density optical disc format developed by Sega for distributing games and software, most notably used with the Dreamcast console.

A. CD+G
CD+G is a compact disc format that stores low-resolution graphics alongside audio, commonly used for karaoke and simple visual displays.
B. MiniDisc
MiniDisc is a magneto-optical disc-based digital audio format introduced by Sony in the early 1990s, known for its portable, rewritable, and durable design as an alternative to cassette tapes and CDs.
C. DVD
DVD is an optical disc format widely used from the late 1990s for distributing movies and other digital data, offering higher capacity and quality than VHS tapes but less than Blu-ray Discs.
D. Sega CD
The Sega CD is an add-on for the Sega Genesis console that introduced CD-based gaming with enhanced audio, full-motion video, and expanded storage for more complex games.
E. LaserDisc
LaserDisc is an early optical disc video format that provided higher-quality analog video and audio than VHS tapes and was popular among home theater enthusiasts before the rise of DVD.
F. None of above. chosen

Statements (49)

Predicate	Object
instanceOf	high-density optical disc ⓘ optical disc format ⓘ
abbreviationOf	GD-ROM self-linksurface differs ⓘ surface form: Gigabyte Disc Read-Only Memory
approximateCDROMCapacity	650–700 MB ⓘ
associatedCompany	Yamaha Corporation ⓘ surface form: Yamaha (manufacturing drives for Dreamcast)
comparedTo	CD-ROM ⓘ
compatibleWithStandardCDDrives	partially ⓘ
contains	high-density data area ⓘ low-density CD-compatible area ⓘ
contentType	Dreamcast ⓘ surface form: Dreamcast game software arcade game software ⓘ
copyProtectionRole	discouraging piracy on Dreamcast ⓘ
dataDensityIncreaseMethod	slower rotation speed ⓘ tighter track pitch ⓘ
dataLayerType	single-layer ⓘ
developer	Sega ⓘ
discDiameter	12 cm ⓘ
eraOfUse	early 2000s ⓘ late 1990s ⓘ
hasHigherCapacityThan	CD-ROM ⓘ
highDensityAreaReadableBy	Dreamcast GD-ROM drive ⓘ
intendedPlatformGeneration	sixth-generation video game consoles ⓘ
introducedBy	Sega ⓘ
isProprietary	true ⓘ
lowDensityAreaUsedFor	PC-readable data ⓘ audio tracks ⓘ
mainCompetitorMediumAtLaunch	DVD-ROM ⓘ
marketedAs	GD-ROM self-linksurface differs ⓘ surface form: Gigabyte Disc Read-Only Memory
mediumForPlatform	Dreamcast ⓘ surface form: Sega Dreamcast
notablyUsedWith	Dreamcast ⓘ
notBackwardCompatibleWith	standard CD audio players for high-density area ⓘ standard PC CD-ROM drives for high-density area ⓘ
obsolescenceStatus	discontinued ⓘ
primarySuccessorInIndustry	DVD-based game distribution ⓘ
primaryUseRegion	worldwide Dreamcast market ⓘ
readOnly	true ⓘ
regionCoding	region-locked per Dreamcast region ⓘ
releaseContext	Sega Dreamcast launch era ⓘ
spinSpeed	slower than typical CD-ROM drives for similar data rate ⓘ
storageCapacity	about 1 GB ⓘ approximately 1.2 GB maximum ⓘ
successorMediumForSegaConsoles	DVD-ROM (used by later consoles generally, not by Sega home consoles) ⓘ
usedFor	distributing software ⓘ distributing video games ⓘ
usedInArcadeHardware	Sega Chihiro ⓘ Sega NAOMI ⓘ Sega NAOMI ⓘ surface form: Sega NAOMI 2 Sega Triforce ⓘ
writableByConsumers	false ⓘ

How these facts were elicited

Referenced by (3)

Full triples — surface form annotated when it differs from this entity's canonical label.

Dreamcast → mediaFormat → GD-ROM ⓘ

GD-ROM → marketedAs → GD-ROM self-linksurface differs ⓘ

this entity surface form: Gigabyte Disc Read-Only Memory

GD-ROM → abbreviationOf → GD-ROM self-linksurface differs ⓘ