Adding subtitles into Blu-ray ??

[Belerofon]

Hi People...I have someone Blu-ray videos (ts. files) please, how added subtitles??Thanks for help...

[mmace]

what software are you using?
are you wanting hardcoded subs?
are you looking to output on Blu-ray, HD-DVD or DVD?
What format are the subtitles in at the moment?