I have a disc which for some reason does not show subtitles when using VLC or Media Player Classic. I have also tried player the built in player in Ifoedit and you can see some funny blocky characters in the place of subtitles like it is corrupt.

I then tried using subrip to extract the subs and as it is scanning them, I can see them perfectly!

They seem to play on a hardware player, but I would like to use my PC. How do I fix this DVD?