In my last post I included a small C program to strip high order bits and "zero" characters from 21xx .tap files. Unfortunately, I posted an old version. Here's the correct version: cvhp.c ------ #include <stdio.h> main() { int c, d; while ((c = getchar()) != EOF) { if (d=(c & 0x7f)) putchar(d); } } ------ Cheers, Lyle -- Lyle Bickley, AF6WS Bickley Consulting West Inc. http://bickleywest.com "Black holes are where God is dividing by zero"