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as there are no options available to synchronise them. Other blu-ray players such as aiseesoft do not have this problem with subtitles always perfectly in sync, suggesting the problem is not with my disc but rather the software.
Have you tried using the subtitles delay hotkeys: Ctrl+[ and Ctrl+]?
If that doesn't work for discs, then that points to the issue being with you graphics driver. Make sure they are all up to date. I've never had an issue with subtitles on BD playback
Dave