24fps > 25fps - scanning for added duplicate frame

[BabaLouie]

I have an AVI file that is 25fps. The original source however, is 23.9fps.
This means that every second there is 1 added duplicate frame.
In Virtual Dub I can clearly see this. When I want to remove these duplicate frames I could do this manually, but since it is a 2 hour long AVI file, it would take forever to do this.

Is there a way to "scan" an AVI file for duplicate frames and delete them automatically?

[setarip]

1) What problem, if any, is the version at 25fps presenting to you?

2) If the audio and video are out of synch as a consequence, try the following:

A) Load the file into VirtualDub

B) Set both "Video" and "Audio" to "Direct Stream Copy"

C) From the "Video" dropdown menu, select "Framerate" - and choose "Change framerate to" and enter 23.976 (not 23.9)

D) Save with a new filename