I do'n't know which subsync you tried. If it's the "on-line" utility: I've got no experience with it, but
Vladimir's SubSync works perfectly for me.
Do you need additional help how to use it perhaps? I give some directions below the
hereunder.
On Vladimir's SubSync page you can also find some
HELP in English, though it concerns a rather old and obsolete version (e.g. showing no buttons Blue and Green there I'm afraid). (
Another "howto" here.)
Also have a look at this post (which i.a. repeats information on BSPlayer's built-in possibilities, which you also could have found easily by looking in BSPlayer's "About" information)
Wrong timing please help - Official BS.Player forums
Load movie-file and load subtitle file (you may have to change the default subtitletype). You'll have to first establish suitable subtitles at the start and at the end of the movie (where you can
see in the video what's said) by playing the movie in the video screen, whilst at the same time showing the subtitles (either in the "Edit Subtitles"-window or separately e.g. simply in Notepad).
In the "Edit Subtitles"-window select the first suitable subtitle at the beginning of the movie and either press Ctrl+F5 or select "Timing/Mark as first for stretch timing". The selected line in the Edit window will now have become
blue. (You will have to move the pointer to another line first before you're able to see that.) Now find and select the last suitable subtitle at the end of the movie and press Ctrl+F6 or select "Timing/Mark as second for stretch timing". The selected line in the Edit window is now
green.
Return to main (play) window and move slider to a position close to the time that the first subtitle (as selected) should appear. Play movie and press the button [
Blue] to set the time for the first subtitle. If you aren't convinced it's entirely correct simply repeat this action.
Now move the slider towards the end of the movie and repeat the same action, but this time press the button [
Green].
If you feel it's OK press [Adjust] and then [Save Subtitles]. :o