DROP will scan an entire mass-storage device seeking clues to the nature of the files it contains. Thus if you lose the directory on a valuable disk and do not have a recent listing, DROP can be used to at least give you some idea of the files present. The program recognizes, for instance, .BN and .SV files, and in the later case, uses the CCB to suggest a likely candidate, ie PIP or ABSLDR or some other system program. Of course it does not know about any of your own special programs, but will list the starting address and the core locations used, which is often sufficient. In the case of ASCII files, DROP will print the first 60 characters (sans all Carriage Returns and Line- feeds), which again is usually enough to identify the file. Given the start- ing block and the length, you can then copy it with LDF. DROP asks at the end: 'WRITE DIRECTORY?'. Respond -only- with 'NO' (or with a carriage return); this option is not properly implemented! EX: .R DROP (or .DEFine DROP and use .DROP dev:-L) *output device < input device defaults: [none] DSK: DROP was developed by an unknown author in Prof. W.L. van der Poel's lab at the Technical University of Delft (Holland) and was made available at the 1978 European DECUS meeting in Copenhagen.