My MPEG-files are not showing correct

Hi

I'm not sure whether this is bsplayer related or not, but I still hope someone has an answar to my problem.

Since recently my mpeg-files can not be shown in correct length.
Ex. if a file is 16 mins long the time displayed is only 1:48 mins and the progress bar slides to full length of 1:48 mins and stops as if the movie is finshed. But if I slide the progress bar almost to the beginning a new scene is shown.
In other terms the movie is set to be 1:48 mins but should in fact be 16 mins. This problem also occurs in other media players.
I have tried reinstalling all codecs but no result - does anyone know of this problem?

/Lund