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Part of the problem here is the very nature of Blu-ray, where you have Java running on a disc and updates needed for that.

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Blu-ray has java?

All Bluray video players are required to support BD-J to pass. [0] And BD-J is Java (Supposedly to make better bonus content). Support for BD-J in hardware has been required since '07. Things like internet access are part of the spec.

[0] https://en.m.wikipedia.org/wiki/BD-J

I'll add that most discs are authored as BD-J.

I does indeed: https://en.wikipedia.org/wiki/BD-J

That's one of the big complications with ripping Blu-Ray discs. Even once you've broken the copy protection it's a guessing game what's played when. Also why VLC still doesn't have menu support.

Why would it need updates? I've never updated my Blu-ray player.

To support new media formats, fix bugs in discs' Java implementations (or their own JVM), etc.

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