Ubuntu :: Removing Parent Dirs From Tar

I'm trying to use tar which I've used a bit before but have never had to do this so I'm unsure. I'm trying to remove parent dirs from the backup. example;

Code: tar cvpjf /path/to/backup.tar.bz2 /path/to/the/source I want the backup.tar.bz2 to only contain the contents of source. At the moment the contents of the backup.tar.bz2 have the following file structure /path/to/the/source/files. How can I remove the parent dirs from the backup.tar.bz2? Alternatively, How could I just extract the contents of source with out the above folder structure? at the moment when I extract the backup.tar.bz2, I get the full folder structure in the location that I extracted it to.