Validator is a simple validation program for High Sierra discs.  We will check for either the 28 May 1986 High Sierra format or for ISO 9660 conformancy.  Start the program, and insert the CDROM disc when you are asked, ÒDo you want help?Ó.  This will bypass the file system mount attempt for a truly bad disc. You will notice that the program uses Think CÕs standard i/o window, and hence is not very Mac-like; this was done to help portability to other operating systems.

Validator keeps a copy of all of the messages it writes to the screen in the file ÒValidation Results.Ó  ItÕs a TEXT file, readable by any word processor or editor.  This file will be created the first time you run the program, and will be appended to thereafter.

For further information, you should consult the appropriate standards.  The 28 May 1986 High Sierra document is available from the National Bureau of Standards in Gaithersburg, Maryland.  The ISO 9660 document should be available from NBS as well, or you can contact the International Organization for Standardization in Geneva, Switzerland.

