Adding subs VCD to VCD (no conversion)

[alkalinelito]

Hello i have been trying to find some help on adding subtitles to a vcd (it really a kvcd) , Anyway all the guides i could find are for using an avi as source and then econde to mpeg . But if i already have an mpeg source ( bin/cue files or the dat file) , whats is the fastest way to add subtitles ?,
Something like mpeg1 to mpeg1+subs (switchable or not )

[Baldrick]

please don't cross post. one topic is enough.