EXS 24 Logic Sampler Users Group

Hi,

What is the meaning of the term "ECO" that's at the end of the EXS24
instruments that are shipped with Logic Pro? There's a duplication of these
instruments, and they seem completely identical. I.e. "Slap Bass" and "Slap
Bass ECO" have the same settings, use the same samples, and, on a quick
first listen, sound the same. I'm at a loss to understand why they're both
there. Almost all the instruments are duplicated in this way.

?

Steven Rowat