These are the little ROM packs that plug into the 'ashtray' on the left hand side of the BBC's keyboard and which prevent you having to open up the case to swap ROMs.

If you use these, or were intending to move over to them, but are put off by them being useless on the Master 128, then I may have the solution...

I have designed, based on Acorn-approved circuitry, a little card that plugs directly into the cartridge slot on a Master, which in turn has a slot in the top of it for accepting a Viglen/Care ROM cartridge. It's called the "Mastercard".

Hence, if you ever have the need to use the packs in either or both machines, you can use the same packs on both.

I am currently in the process of choosing a company to make up the double-sided Printed Circuit Board required by the design, but before I commit any money to the cards I need to guage the interest level.

So if you think you might like to buy such an addon, or just want more details, write to me, or register your 'vote' by telephoning me:

• Send no money now
• These are a brand new design (C)1996
• I intend to keep the price below £9
• They are fully Acorn-compatible

Robert Sprowson, EUG #26