Possible causes
- The player has incomplete HDMV or BD-J support.
- The archive is incomplete or the wrong folder level was opened.
Check in this order
- Confirm both BDMV and CERTIFICATE structures are present.
- Test the main title separately from the menu.
- Do not treat VLC-only behavior as hardware-player proof.
Fix steps
- Open the ISO or the directory above BDMV instead of an internal playlist.
- Use a player with documented support for the recorded HDMV or BD-J menu type.
When to escalate
Escalate when the archive is structurally complete but the same menu fails in two documented compatible players.
If it is still unresolved, collect
- player and version
- menu type
- folder listing
- sanitized error block
Known log signatures
menu not available | bd-j error | failed to load menu | java menu
Evidence
- tsMuxer 2.7.0 release and capabilities — checked 2026-07-12, review due 2026-10-10