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VFW_E_DVD_INVALID_DISC
Meaning
Windows documents VFW_E_DVD_INVALID_DISC as “The specified path does not point to a valid DVD disc”. Here, the path supplied to the DVD graph builder does not identify a valid DVD-Video volume.
Relevant contract
Code-specific boundary: VFW_E_DVD_INVALID_DISC narrows the investigation to the DVD-Video structure and authored navigation data on the medium, not merely whether the drive can read sectors. 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 path points to an ordinary folder.
- Cause 2: required VIDEO_TS structures are missing or unreadable.
- Cause 3: the mounted image is incomplete or not DVD-Video.
Evidence worth preserving
- Evidence 1: resolved volume path and mount type.
- Evidence 2: presence and readability of DVD navigation files.
- Evidence 3: filesystem and drive errors.
Correction strategy
- Action 1: select the DVD root or valid VIDEO_TS source expected by the API.
- Action 2: verify the image or media before graph construction.
- Action 3: distinguish access failure from invalid DVD structure in user messages.
Retry and recovery
Retry rule: Retry after a valid DVD volume is mounted or the path is corrected.
How it differs from nearby results
VFW_E_BAD_VIDEOCD concerns Video CD media or reads, while it concerns DVD-Video volume validity.
Example incident
A user selects a folder containing only copied VOB files but no complete DVD navigation structure; validating the volume before building explains it.
Official Microsoft references
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