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VFW_E_DVD_STATE_WRONG_DISC
Meaning
Windows documents VFW_E_DVD_STATE_WRONG_DISC as “The state data is from a different disc”. Here, saved DVD state belongs to a different disc from the one currently loaded in the navigator.
Evidence worth preserving
- Evidence 1: current DVD unique ID and saved-disc key.
- Evidence 2: volume path, side and media-change events.
- Evidence 3: bookmark selection logic.
Relevant contract
Code-specific boundary: VFW_E_DVD_STATE_WRONG_DISC narrows the investigation to the disc identity embedded in the saved state versus the disc currently loaded. 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.
Conditions that can produce it
- Cause 1: the user inserted another disc before restore.
- Cause 2: bookmarks were keyed only by drive letter.
- Cause 3: two disc images share a path but not the same DVD identity.
Correction strategy
- Action 1: associate each bookmark with the DVD unique identifier.
- Action 2: invalidate selections on disc-change events.
- Action 3: offer a clear choice to load the matching disc rather than forcing restore.
Example incident
A player stores one global resume blob and attempts to apply it after a different DVD is inserted; per-disc indexing prevents it.
Retry and recovery
Retry rule: Retry only after loading the disc that produced the state or selecting a bookmark for the current disc.
How it differs from nearby results
VFW_E_DVD_INVALID_DISC says the selected path is not a valid DVD; it says both the disc and state are valid but do not match.
Official Microsoft references
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