duplicate class error

Hi everyone!

Let's try to be brief:

my dev folder:
....../Meeting/src/*.java

my class folder:
....../Meeting/WEB-INF/classes/*.class
....../Meeting/WEB-INF/classes/MeetPack/*.class

I don't want all my classes to go on the MeetPack package. But when I remove "package MeetPack;" from those which should go in the classes folder, I got the duplicate class error.

I compile with:
javac -d ..\WEB-INF\classes\ *.java

I don't execute Tomcat's "setclasspath.bat" before compiling.

What should be my CLASSPATH? What is the top-level directory?

I'm almost sure that I'm not explicit enough, but I hope someone sees where does the duplicate class problem come from...

Thank you very much! This is one of the best forums I've ever seen.
Cheers,
::Tiago25one