On the main screen of the BAS-o-matic go to the tab “Logging” and check this box (Auto Saving) to have the program automatically save captured packets as they arrive. Use the Maximum directory size field to limit the total size of the capture files stored in the Log Directory. If the total size of the capture files exceeds the limit, the program automatically deletes the oldest files in the directory. The Average Log File Size field allows you to specify the approximate desired size of each log file. When the log file reaches the specified size, a new file is automatically created. To change the default Log Directory, click on the Save files to box and select a different folder.