Hi all,
The current support for synchronizing out-of-sync subtitles when the movie is being played is, to give a positive or negative subtitle delay in multiples of 50ms. This will be a really painful exercise, if the subtitle is, say, slower by say 25 seconds.
So, if VLC can provide an option to Go to the next/previous entry, and calculate the required delay by itself, then it will be really easy to use out-of sync subtitles. I think, MPlayer has such an option, but I'm not sure. I feel that this method is more user-friendly than the giving the subtitle time delay.
Also, on going to the next/previous subtitle entry, if it can show the calculated delay [ just like it shows on adding 50ms subtitle delay], then one can use a subtitle editor to fix the subtitle easily.