mux subtitles to mp4

[Dogway]

Im trying to mux video, 2 audio streams and subtitles into a mp4. But when I do so with mp4box, when played on MPC 2 subtitles streams are created, the first one loaded by default, and second one which is the GOOD one:

http://img696.imageshack.us/img696/3005/16724637.png

subs are srt, and this is my code for mp4box:
mp4box -add video.mp4;par=103:100 -add audioESP.m4a -add audioENG.m4a -delay audioENG.m4a=100 -add subs.srt test.mp4

Also as you can see (although this isn't the right section) I want to delay one audio stream 100ms, not sure if my code is correct.

[Dogway]

Is it a weird question? Or is the add subtitle flag not working nice on this version? How do you guys do it?

[Kurtnoise]

It's due to the mpc-hc internal design for subtitles rendering...