Translation of voluminös

In the meantime I am listening to some Spanish CDs. They are intended for the car, but no one can tell you when to listen to it, how many times and how often. Please understand that I work a lot.
We recently started a new free vocabulary and conjugation website, called Vocabulix (http://www.vocabulix.com). This free website targets people who are interested in learning foreign languages.
I got a nickname. Please answer the questions from my previous email (below), except number 4, which is answered on the Vocabulix's faq page. I am ready to start tomorrow, but i need the info first.