The UK DVD and BD Locked Subtitles Thread

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Sound! Euphonium's subtitles are locked.
March comes in like a Lion's subtitles are unlocked and can be turned on/off during playback.

 

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I'm interested in making a thread for removable subtitles for European releases. It would mostly include Blu-rays from France, Spain, Italy, Germany, UK. Would it be ok if I use the same format for titles and include some of the rules from this thread for the removable subtitles thread? @BlackCondor93