Is there a difference between DELAY -value and +value?

[daehkcid]

DELAY 3ms and DELAY -3ms

are they the same? What should I input in IFOEdit according to each?

[hakko504]

Well, 3ms is hardly noticeable in any direction. But the sign is very significant: a - indicates video ahead of audio. Otherwise it's audio ahead of video. I think I got it right, in any case the definition is this:
pcm.delay = ((AudioPTS-VideoPTS)/90) * 192;
The DELAY value is defined so that the number (with sign) is the number you should enter in all other applications (I.e. IfoEdit or VirtualDub f.i.) when muxing audio with video.

[daehkcid]

Great help, thnx alot!