With reference to the letter regarding availability of blank computer tapes, I used to get mine from Tandy. They were labelled "Computer Certified C10, C15 and C20". I get my disks from Argos, see page 301 in their catalogue. They are labelled "Select 3.5" DS DD 135 TPI" and cost £5.99 for a pack of ten.
1st September 1992