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STATUS_COPY_PROTECTION_FAILURE
Find the failed copy-protection step, not just the final umbrella status
STATUS_COPY_PROTECTION_FAILURE is a broad copy-protection result. In the Windows DVD driver interface, copy-protection work is explicitly session and key oriented: a caller starts a DVD session, receives an AGID, and uses DVD key I/O controls and DVD_COPY_PROTECT_KEY data for subsequent protocol operations.
The umbrella status does not tell you whether the failure was session allocation, challenge/key exchange, title-key access, region handling, or another device copy-protection operation. Preserve the I/O control code, key type, session ID and device completion that came before the mapped NTSTATUS.
Do not diagnose it as a generic scratched-disc error solely because the operation targets optical media. Media read errors and copy-protection protocol failures have different evidence. Likewise, do not immediately change the drive region: region mismatch has its own NTSTATUS and Windows exposes region information separately.
What to inspect
- The DVD I/O control sequence and the first request that failed.
- AGID/session ID,
DVD_KEY_TYPE, key flags and returned device status for that step. - Whether the failure is reproducible before ordinary media reads or only during a specific protected title operation.
References
- Microsoft: DVD storage driver interfaces
- Microsoft: IOCTL_DVD_START_SESSION
- Microsoft: IOCTL_DVD_READ_KEY
- Microsoft: DVD_COPY_PROTECT_KEY
- Microsoft Open Specifications: NTSTATUS values
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