bdplus and libmmbd

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Hen23776
Posts: 1
Joined: Fri Jan 23, 2026 9:11 pm

bdplus and libmmbd

Post by Hen23776 » Fri Jan 23, 2026 9:48 pm

Hi there,

I'm running into something that looks like a bug: some bdplus discs work totally fine when accessed through MakeMkv but not when accessed through libmmbd. When using the library (for example with vlc), the first part of the disc plays without issues but after some point (say 18 minutes), the result looks like the fut is incorrect.

Nothing is logged when the fixup is not working (the logs look like any other log), and the library reports that it is performing fixups. In fact, the data changes when the library reports that something was fixed. The behavior is the same whether using the native api or libbdplus emulation.

For example, Thunderball (bd+ v2008.8) fails, while Alien (bd+ v2010.11) is fine.

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