SupRip- a free but useful tool for converting Blu-ray PGS subtitles

You might have learned that SubRip allows you to rip DVD subtitles with their timing as a text file.  It converts vobsub(sub and idx) to srt text subtitles(vobsub to srt / sub to srt / subtosrt / sub2srt ) at ease.  Yet the program can do more for you. In fact it is capable of converting Blu-ray .sup subtitles to .srt as well with OCR option.

PROS:
Rips DVD Subs, Image Subs, PNG Subs, and HARD-CODED SUBS!
Learns well when training.
Can be modified (using semi-source) by knowledgeable user to do non-Latin text.

CONS:
Hard to extend to non-latin text by average user
OCR has difficulty reading the odd Sub file now and then. Indispensable tool for foreign language films.
Slower than some rippers.

Download Link:
SubRip

Compatible OS:
Windows XP, 2000, Vista

Guide:
[HOW TO] Convert Blu-ray PGS subtitles to SRT