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VFW_E_DVD_NO_GOUP_PGC
Meaning
Windows documents VFW_E_DVD_NO_GOUP_PGC as “Currently there is no GoUp (Annex J user function) program chain (PGC)”. Here, the application requests the Annex J GoUp operation when the current DVD context has no GoUp program chain.
Conditions that can produce it
- Cause 1: the disc author omitted a GoUp PGC.
- Cause 2: the current title or menu has no parent navigation target.
- Cause 3: the UI assumes GoUp is universally available.
Relevant contract
Code-specific boundary: VFW_E_DVD_NO_GOUP_PGC narrows the investigation to the authored navigation graph: the current program chain has no valid GoUp destination. Preserve the DVD domain, title/menu location and graph topology from the same attempt so a later navigation error is not mistaken for the original condition.
Start with the DVD Navigator, graph builder, decoder inventory and renderer topology.
Evidence worth preserving
- Evidence 1: current domain and PGC.
- Evidence 2: valid user-operation mask.
- Evidence 3: disc navigation events and requested command.
Correction strategy
- Action 1: disable the GoUp command when no target exists.
- Action 2: offer an application-level fallback such as showing the root menu only when valid.
- Action 3: do not synthesize DVD navigation that conflicts with authored flow.
Example incident
A remote-control Back button always maps to GoUp, but the active title has no GoUp PGC; capability-aware mapping avoids it.
Retry and recovery
Retry rule: Retry after playback enters a PGC with a defined GoUp target.
How it differs from nearby results
VFW_E_DVD_MENU_DOES_NOT_EXIST concerns a named menu, while it concerns the absence of the authored GoUp navigation chain.
Official Microsoft references
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