Uhm, AFAIK, the PS3 doesn’t support FLV video. Are you saying that it does?
And no, you don’t need to pay a license for Twonky on the MBL. You just need to install the Twonky Patch provided by WD described in the release notes.
I’m not sure if PS3’s support external subtitles, either, but I won’t swear to it. Everything I see online says that you have to use a transcoding media server that muxes subtitles in real time.
