Cut direct copy fps around 100 when virtualdub goes to 1000

[starcraft04]

Hi all,

I am wondering if I do something wrong because when I use virtualdub and I cut a scene from a movie, it goes to 1000 frame per second. It s normal as this is just a copy and no re encoding needs to be done.

My problem is if I use avidemux instead, I get 100 to 200 frame per second. Is it normal? I use copy vor video and for audio. It should just be a copy so much faster than only 100 frame per second.

Thanks for your help,

John.