DLSupCBF is a directory inspecting program that compares files as binary data - even if the data is ASCII text. With DLSupCBF you can process individual files from a directory file list, entire directories, or multiple levels of directories. You can use DLSupCBF to determine the total file space at each subdirectory level, showing the accumulated space at the top directory level. The amount of information returned can be determined by options that the user can specify. DLSupCBF allows the user to speed up a comparison job by allowing files with equivalent time-stamp-length to be recognized as matching files. The results are reported in a table structure. Reports are colored and can be printed or saved to disk.