Hi,
i have made a little tool in order to mux .ssa / .srt / .sub directely in the .rmvb container.
a big great at gabest who have added this option in the realmediasplitter.
all u need is select the input .rmvb file , the desired subtitle(s) and mux them , when u will play the new .rmvb created in a directshowplayer (mpc, wmp, bsplayer ....) vsfilter will display them.
URL :
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http://dark.pluridis.org/~darkangel/RMVB_SubtitleMuxer.zipi have also add a .reg file to setup dvobsub to display them automaticly.
PS: think to select dshow compatility to play realmedia file.
PS2: u need have the vb6 dll (u can find it on my siteweb in the "other" download section, follow my signature).
Bye.