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14 flagships · 25 briefs · 8 dossiers · 965 entities — record updated October 4, 2026

Obsolete Formats

CTL-E-0762 · Practice · other · unspecified

PROVISIONAL evidence grade of this record

Carriers whose playback and migration paths are disappearing: reel-to-reel and cassette tape, U-matic and half-inch video, floppy disks, unlabeled CDs, MiniDV/DAT with dead transfer software.

Notes

Merged into canonical KG 2026-10-03 from PRESERVE-001; source entity IDs: CTL-DR-PRESERVE-001:CTL-PRESERVE-E-005; source research type(s): risk. Era not present in source research record(s); marked unspecified pending human review.

Sources

Record CTL-E-0762 · CultureTechLens Knowledge Graph · evidence grade: PROVISIONAL · 3 sources (2 primary) · CTL research: PRESERVE-001.
Directory: all entity records · the knowledge graph

Cite this record

Cite as: CultureTechLens, “Obsolete Formats (CTL-E-0762),” CultureTechLens Knowledge Graph, October 2026. https://culturetechlens.com/graph/entities/ctl-e-0762/

Chicago: CultureTechLens. “Obsolete Formats (CTL-E-0762).” CultureTechLens Knowledge Graph. Chicago, IL: CultureTechLens, 2026. https://culturetechlens.com/graph/entities/ctl-e-0762/
APA: CultureTechLens. (2026). Obsolete Formats (CTL-E-0762) [Entity record]. CultureTechLens Knowledge Graph. https://culturetechlens.com/graph/entities/ctl-e-0762/
MLA: CultureTechLens. “Obsolete Formats (CTL-E-0762).” CultureTechLens Knowledge Graph, 2026, https://culturetechlens.com/graph/entities/ctl-e-0762/

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From the Archive

The archive in pictures

The people, places, and institutions this work documents. Photographs from the CultureTechLens research record — rights-cleared, credited, and cited like everything else here.

The 35th Street Bronzeville CTA station, Chicago
The 35th Street Bronzeville CTA station, ChicagoPhoto: vxla (Eric Pancer), CC BY 2.0, via Wikimedia Commons
The Wabash Avenue YMCA, Chicago
The Wabash Avenue YMCA, ChicagoPhoto: Andrew Jameson, CC BY-SA 3.0, via Wikimedia Commons
Chicago Blues All-Stars performing live at Buddy Guy’s Legends, Chicago
Chicago Blues All-Stars performing live at Buddy Guy’s Legends, ChicagoPhoto: BluesAllstars, CC BY-SA 4.0, via Wikimedia Commons

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