'Diagnostic'

def dump_headers(self):

    print '\ndump_headers():'
    for tag in self.topaz_headers:
        print ('%s:    ' % tag)
        num_recs = len(self.topaz_headers[tag]['blocks'])
        print ('    num_recs:    %d' % num_recs)
        if num_recs:
            print ('    starting    offset:    0x%x' % self.topaz_headers[tag]['blocks'][0]['offset'])
