Quoting "Jostein Chr. Andersen" <jostein(a)vait.se>se>:
When you say that less than 10% of the population can
hear the
difference, I believe you, but I have problem to see what this have to
do with my case. Producer's and engineers often want to hear a pre-mix
or examples in MP3 and DropBox is a common tool for this, and I can
assure you that many of them belongs to the 10% club.
If they're fine with an MP3 and the size of it is not an issue then
"lame -b 320" or "lame -V0" is the best you can get.
And if they complain you might want to ask them to do an ABX :)
- Peder