HD DVD
E771971
HD DVD was a now-obsolete high-definition optical disc format developed as a successor to DVD that competed with Blu-ray Disc in the mid-2000s format war.
All labels observed (2)
| Label | Occurrences |
|---|---|
| HD DVD canonical | 4 |
| HD DVD technology | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9002070 — 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: HD DVD Context triple: [BDA, comparedWith, HD DVD]
-
A.
HDTV
HDTV (High-Definition Television) is a television broadcasting standard that delivers significantly higher resolution, improved picture clarity, and better color quality compared to traditional standard-definition TV.
-
B.
HD
HD is the New York Stock Exchange ticker symbol for The Home Depot, the largest home improvement retail chain in the United States.
-
C.
HD
HD is the vehicle registration code used for the German city of Heidelberg.
-
D.
HD
HD is the standard astronomical abbreviation for the Henry Draper Catalogue, a widely used star catalog that assigns spectral classifications and identifiers to hundreds of thousands of stars.
-
E.
HD
HD is an inherited neurodegenerative disorder characterized by progressive motor dysfunction, cognitive decline, and psychiatric symptoms caused by a CAG repeat expansion in the huntingtin gene.
- 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: HD DVD Target entity description: HD DVD was a now-obsolete high-definition optical disc format developed as a successor to DVD that competed with Blu-ray Disc in the mid-2000s format war.
-
A.
HDTV
HDTV (High-Definition Television) is a television broadcasting standard that delivers significantly higher resolution, improved picture clarity, and better color quality compared to traditional standard-definition TV.
-
B.
HD
HD is the vehicle registration code used for the German city of Heidelberg.
-
C.
HD
HD is the New York Stock Exchange ticker symbol for The Home Depot, the largest home improvement retail chain in the United States.
-
D.
HD
HD is the standard astronomical abbreviation for the Henry Draper Catalogue, a widely used star catalog that assigns spectral classifications and identifiers to hundreds of thousands of stars.
-
E.
HD
HD is an inherited neurodegenerative disorder characterized by progressive motor dysfunction, cognitive decline, and psychiatric symptoms caused by a CAG repeat expansion in the huntingtin gene.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
high-definition optical disc format
ⓘ
optical disc format ⓘ physical media format ⓘ |
| abbreviationOf | High Definition Digital Versatile Disc NERFINISHED ⓘ |
| alsoKnownAs | High Definition Digital Versatile Disc NERFINISHED ⓘ |
| backwardCompatibleWith | DVD (via combo discs and hybrid players) ⓘ |
| commerciallyIntroducedInYear | 2006 ⓘ |
| competedWith | Blu-ray Disc NERFINISHED ⓘ |
| copyProtection |
AACS
NERFINISHED
ⓘ
HDCP NERFINISHED ⓘ |
| declaredDefeatedOn | 2008-02-19 ⓘ |
| developedAs | successor to DVD ⓘ |
| developedBy |
NEC
NERFINISHED
ⓘ
Toshiba NERFINISHED ⓘ |
| discontinuedInYear | 2008 ⓘ |
| interactiveLayer | HDi NERFINISHED ⓘ |
| introducedInYear | 2002 ⓘ |
| lostFormatWarTo | Blu-ray Disc NERFINISHED ⓘ |
| marketedBy | Toshiba NERFINISHED ⓘ |
| partOf | high-definition optical disc format war ⓘ |
| physicalDiscDiameter | 120 mm ⓘ |
| predecessorFormat | DVD NERFINISHED ⓘ |
| primaryAudioCodec |
DTS-HD High Resolution Audio
GENERATED
ⓘ
DTS-HD Master Audio GENERATED ⓘ Dolby Digital Plus GENERATED ⓘ Dolby TrueHD GENERATED ⓘ |
| primaryVideoCodec |
H.264/MPEG-4 AVC
GENERATED
ⓘ
MPEG-2 GENERATED ⓘ VC-1 GENERATED ⓘ |
| regionCoding | no regional coding for movies ⓘ |
| standardizedBy | DVD Forum NERFINISHED ⓘ |
| status | obsolete ⓘ |
| storageCapacityDualLayer | 30 GB ⓘ |
| storageCapacitySingleLayer | 15 GB ⓘ |
| storageCapacityTripleLayer | 51 GB ⓘ |
| successorFormat | Blu-ray Disc NERFINISHED ⓘ |
| supportedBy |
Intel
NERFINISHED
ⓘ
Microsoft NERFINISHED ⓘ Paramount Home Entertainment NERFINISHED ⓘ Universal Studios Home Entertainment NERFINISHED ⓘ Warner Home Video (initially dual-format) NERFINISHED ⓘ |
| supportsFeature |
picture-in-picture
ⓘ
web-enabled content ⓘ |
| supportsVideoResolution |
1080i
ⓘ
1080p ⓘ 720p ⓘ |
| usesLaserColor | blue-violet ⓘ |
| usesLaserWavelength | 405 nm ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: HD DVD Description of subject: HD DVD was a now-obsolete high-definition optical disc format developed as a successor to DVD that competed with Blu-ray Disc in the mid-2000s format war.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
HD DVD technology