Synchro

Hi every one

I ever try tu use synchro, with custom content in DL3 and DL2
I have encoded with TMPEG like in your support content
And when I active synchro type and synchro to, it 's not synchro
I hoped that the release 1.4 could make the difference, but I don't see it...

Is there another way, or another soft to encode like stock content?
Because the stock content are perfectly synchro

Thank's
Stef