Entering the "Record Directory Table" command ("R") will printout the record table showing the number of traces in each record. This may be different, depending on whether "ION" or "IOFF" has been selected. This is an example:

r

--- Record Directory ---

      RecNum  # traces
           1        81
           2        81
           3        81
           4        81
           5        81
           6        81
           7        81
           8        81
           9        81
          10        81
          11        81
          12        81
          13        81
          14        81
          15        81
          16        81
          17        81
          18        81
          19        81
          20        81
          21        81
          22        81
          23        81
          24        81
          25        81
          26        81
          27        81
          28        81
          29        81
          30        81