As to the deletes, LG would have to answer.
Bob
So, I put some MKV files into a usb drive along with the srt files (which match the names of the MKVs). Then I plug the usb to the TV (LG 42LN5710), the video plays fine but the subtitles are not displayed.
Then I removed the usb from the TV and plug into my laptop to see what's wrong, surprisingly, the SRT files are missing (deleted by the TV), I tried it a couple times (by putting the SRT files back in the usb) but then they are always deleted after playing the videos on the TV. Please help me how to make the subtitles work.

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