Colin Merry (Routine Enquiries, issue 72) wrote asking how the beep we manage to display screens from protected software.

Your readers may be interested to know that while we have occasionally received screen dumps directly from authors or overcome protection devices, the majority of our reviews are made possible by the expedient of rewriting the non-maskable interrupt routine in the Spectrum ROM. EPROM Service of Leeds helped us out by producing the hardware and blowing an EPROM to specifications dictated over the telephone in hexadecimal.

Now we just press a button and the screen is saved to tape.

Roger Swift, 16/48 Magazine, Chiswick, London W4