Distortion in sound after Bounce to Disk

[MijacOnAir]

Hello everyone, I have just registered on the forum due to this problem.
My situation is this:
I'm editing a trailer for a short film on Final Cut Pro 7 and the final mix on PT. It sounds good when I playback it in the session but once I get the project bounced this sounds all distorted both in Final Cut and in any player (quicktime, vlc, iTunes...).

I need this mix to be ready for this Saturday so any help is really appreciated

Thanks in advance!

P.S.: I have also tried to record everything on a new stereo track but the sound breaks during the recording (though I put an aux track or a compressor)...

[daeron80]

Make a master fader. Pull it way down, like -20. Turn up your monitor volume a bit. Play the track back and watch the peak level on the master. Turn it up enough that the highest peak is between -3 and -1. Bounce that. Should fix it. Really, for a film trailer, you should be using a loudness meter to keep your mix at the standard level. That will keep you out of the distortion zone. Here's a good article on it with pointers to more info.