Thankyou Fred, that was clarified ealrier in the thread, post number 17.
Now I wonder if you speak german, since the spelling of the Bach Werke Verzeichnis was perfect!

Actually the answer was posted before, and then the thread had taken an interesting turn.
Welcome Mr. Jrc on the VSM boards!
I hope you'll enjoy posting classical-sheet music related issues on here!
Sincerely,
Sylvia

BWV is the acronym for Bachwerkeverzeichnis - a long German term which translates as "Bach Work Catalog". Like Mozart, Bach was incredibly prolific in the generation of music. Most of his works were written for a specific occasion but little value was placed on them during his lifetime. When Wolfgang Schmieder undertook the task of compiling a cohent list of all of Bach's compositions, an incredible amount of research ensued. The fruit of his labor is accepted universally as the most definitive catalog of Bach's music. No one is absolutely sure that all Bach compositions are represented in the catalog (the same problem that is presented in reviewing Köchel's compilation). Occasionally, you will find a Bach work that has an "S" number instead of BWV -- these are one and the same. Virtually all sources prefer to show BWV numbers for consistency's sake.

I copied and pasted this so you know, from "www.theclassicalstation.org" which is a great classical radio.

Answered twice before this; 14/11 by Fabrizio with a link to Wikipedia, and 7/12 by me.
But we can keep on answering it if you like. Or we could move on to all the other rather fascinating composer opus lists! Or then again, maybe not.
Sue :D

Lol thanks TVL. But still, I feel as an...idiot towards Sorsha and his brother. Oh well, it's over now. Nevertheless, I know something new...there are a brother and a sister in this forum: Sorsha (alias artsywright) and her "knowledgable" brother (Carl)...

BWV numbers explained
 

This article explains BWV catalog numbers for Bach's works:

http://en.wikipedia.org/wiki/BWV