Certify is a Disk Certification and Utility program. It has been placed in the Public Domain by the Author Cark Beck. It comes to you compliments of the Denver, Co. Xerox Computer Club. Certify is essentially menu driven as in the example below: "CERTIFY" DISK CERTIFICATION & UTILITY Rev 2.4 3/29/84 By: Carl Beck Arvada, CO. Enter desired drive. ( A - P) "A" The Disk in Drive A has: 77 Logical Tracks 2 Reserved System Tracks 52 128 Bytes Records per Track 128 Directory Entries. DISK CAPACITY 243 Blocks at 2048 Bytes Each. = 486 Kilobytes. SELECT DESIRED TASK FROM THE FOLLOWING MENU CERT - Read Disk & Report Errors | LOGBAD - Log Bad Blocks in Directory DIR - Print DIR | DIB - Print DIR with Block Numbers CPM - Return to CP/M | DSK - Select a Drive DUMP - Display in Hex/ASCII Only the first 3 letters "DUM" SELECT DESIRED DATA B - Block | T - Track | S - Sector | N - File name R - Return to main menu. If Hex Numbers entered, enter H in front of Number "T" Enter Track Number (1 - 76 ) 1 Enter Sector Number (0 - 51 ) 0 TRACK 1 - SECTOR 0 - PHYSICAL SECTOR 0 - BLOCK -1 addr 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 00 (SECTOR DATA IN HEX) (SECTOR DATA 10 IN ASCII) 20 30 40 50 60 70 And so on and so forth through the various menues. END