Small update from Showtime was released last week by lonelycoder:
PS3: Fixed broken MPEG-2 video decoding
Description: Latest from SVN can’t play mpeg-2 video
The latest from SVN stopped playing an 1080p mpeg-2 remux I have (it will play the audio only).
Also, why not prioritize external subtitles. That’s the only modification I add myself (I posted the code somewhere in redmine).
Usually, if you add an external subtitle, it’s because all the internal ones are crappy (grammatical errors, OCR errors, bad translations, etc)