Why the volume in the cake view its higher ? Need Help

[reborn]

Hi all

Why the volume in the cake view its higher (the volume is loud) than, when i exported to wav, and i listen in my computer Media player...? Its a problem i cant resolve... The volume diferences...

I recorded my band into separeted tracks, and finalize all mix... And it sounds like a profissional cd music. But the real problem, appears when i export to wav, and listen in media player. The general volume decreases.

At the 1 time i though the problem was from my media player but is not, because, all mp3, cds are sounding great, and my have is not...

Can you help me with this problem.... Thanks.