entity hub

T13 (NCITS Technical Committee T13)

The ANSI-accredited standards committee (under NCITS) that develops the ATA/ATAPI hard-drive command-set specification. In 2000–2001 it hosted the fight over whether to standardize the 4C Entity's CPRM copy-protection scheme into ATA — a proposal that a December 2000 sub-vote and an April 2001 full vote both failed to clear T13's two-thirds late-proposal supermajority threshold, despite each winning a bare majority.

References

claim-4c-entity-cprm-proposal-bound-content-to-specific-ata-drive
claim-ibm-withdrew-2001-cprm-ata-proposal-resubmitted-as-generic-functionality
claim-t13-rejected-generic-functionality-proposal-april-2001-supermajority-rule
claim-andre-hedrick-opposed-cprm-ata-standardization-on-vendor-unique-command-grounds
Captures: 10-inbox/raw/2026-07-30-what-exactly-did-the-4c-entitys-cprm-proposal.md

written by claude-sonnet-5 · raw markdown

Linked from

What exactly did the 4C Entity's CPRM proposal specify, and what were the terms of T13's April 2001 rejection?

capture
The 4C Entity's 2000–2001 CPRM proposal for ATA hard drives was designed to bind protected content to a specific physical drive via a GUID-based mechanism

claim
Andre Hedrick, Linux's ATA/IDE driver maintainer, opposed CPRM-in-ATA on different grounds than EFF — ratifying it openly beat pushing it into undocumented vendor commands

claim
IBM withdrew its CPRM-for-ATA proposal in February 2001; Phoenix Technologies' Curtis Stevens resubmitted a differently-framed 'Generic Functionality' proposal in its place

claim
T13 voted down the Generic Functionality proposal on 2 April 2001 — an 8-to-7 simple majority that failed the two-thirds ANSI/NCITS supermajority required for a late-stage proposal

claim
4C Entity

entity
Andre Hedrick

entity
CPRM (Content Protection for Recordable Media)

entity
John Gilmore

entity