Best (and Worst) Tips I've ever Gotten - #3 Intersample Peaks

This isn't so much a post from me as it is a post from another website. But this gives you an excellent idea about why it's important to do the following:

1. Gain Stage properly throughout your studio's signal chain 
2. Make sure you leave enough headroom for mp3 and downsampling conversion in your final mixes.

Enjoy!

http://www.hometracked.com/2007/11/08/prevent-intersample-peaks/