QT .264 wrong FPS ?

[xbox360]

I just demuxed a QT trailer with MP4Box, the original .mov trailer says it's 23.98 fps (open quicktime & press CTRL+I). But in DGAVCIndex v1.0.6 , when I import the demuxed .264 trailer , DGAVCIndex v1.0.6 reports it is 25 fps. What should I do ? because when I make a dvd the video is faster than the audio (video = 1.43 , Audio = 1.46). The trailer I am talking about is this
up-tlr2_h1080p.

[neuron2]

Open the DGA file and go to the bottom. Change the FPS line to:

FPS 24000 / 1001

The problem is that the raw AVC stream is not declaring a frame rate, and in such cases, DGAVCIndex defaults to 25fps. Perhaps I should add a GUI option to set the frame rate.