When i watch movie background sound sometimes is to loud and voice are to low andyou have to rise volume to hear dialog and then in couple of minutes you notices its to loud when you hear explosion for example and you have to lower volume. Strange thing and its with each movie i watch even dvd's.
Someone got same?

Had this problem during DivX movies. It was due to AC3 Filter and its AutoMatrix. Aif you use that turn the Automatrix off and it might fix your problem.

Hmm wheres that option i cant find it?

Okay, the reason for this is simple. AC3 soundtracks have a wide dynamic range, and a hardware DVD player like a Sony or a Samsung is supposed to compress the dynamics of the sound when it decodes. On computer, this can be done through a filter in whatever program it is that you're using... or you could simply decode to WAV and compress the AC3 file with something like AZID.