It made them play in Apocalypto using WinDVD (see the screen capture) when they wouldn't before. See the empirically derived disclaimer. Haven't tried in my standalone yet. The subtitle checkmark in WinDVD was at "Disable" when the screen capture was made. They were absent (even when ripped using customize/no menus/green arrow) without this procedure. Never claimed it was the best way or even right, just that it worked.