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I had the Schneider CPC-464 (German version) and a flight simulation game simulating an Apache Tomcat helicopter.

I believe the most underrated part is the explanation of how the data/address bus work! I will be constantly referring this to people who want a simple and straight forward explanation about that subject. It was brilliant!

I have a similar story. I had the Commodore 64 and did exactly the same thing as you, reverse-engineering the code to add infinite lives and stuff like that. I also converted a lot of cassette games to load from the disk drive, adding a small turbo loader to speed things up a bit. This taught me so much about 6502 assembly and also about the Commodore 64 and Disk Drive hardware and memory mapping as well. Good times, I remember them with fondness. By the way this multiface is very similar to the Action Replay and Final Cartridge versions that we had for the Commodore 64. Great Video ;)

Noel. You are a true genius in everything you do and how you explain it brilliantly. I have no background in electronics except what I learned myself over the years. My background is industrial automation making today's industrial world more efficient but my love is old stuff. So we'll designed and thought out with what they had. I have bought and repaired vintage amplifiers, twin cassette decks that I now listen to. Long story short I bought 4 items on ebay untested of course. 2 Atari's 2600, both fixed. A commodore 64 PSU issue so today I rebuild a new PSU by hammer and punch literally breaking open a brick of death to get the 9 volt ac transformer and rigged a 5 volt switching charger to the din power plug for the 64 and working perfectly. My problem is my last one an Amstrad cpc 464. Anytime I power it on I get zig zag, horizontal lines but most frequently white screen black border. I have schematics but I work with a magnifying glass a digital multimeter and a hunger to know why and what am I missing. Any ideas and how did you learn all this? Life I know but books, college etc I would be extremely grateful for any information. Best on KZfaq without a shadow of a doubt. Keep posting.

What a brilliant video about the multiface 2 Noel, thank you for doing this ! you are a star :)

This is the first thing I ever saved up for. 4-5 weeks doing two paper rounds. It was brilliant (I sold a whole load of CPC stuff 4 years ago when I moved.... There were three of them in the box!)

Thank you for the video and all the explanations. I have the Multiface original one, but I havent explored all the options until now.

I was so pleased with the Multiface One for my ZX Spectrum. At the time it was like a little piece of boxed up magic.

Excellent explanation of how the device works. Great video! Your proposed new device would be very useful for those with busy lives, allowing them to stop and restart their gaming with little lost time.

Nice clean build and some great technical information shared there, Noel. Skills acknowledged.

Great video and walk through, thanks for sharing

Absolutely brilliant video. Great explanation and the info on the “arms race” was very entertaining. Subbed and hit the bell!

A college friend of mine and a partner designed a board, which did exactly the same thing for the Apple II, which would have been around 1979-80 from memory. They set up a company and sold huge numbers, mostly in the USA and for a few years it made quite a lot of money. There were attempts by software companies to stop the sale of these type of devices, as they were widely used to bypass copy protection, but they all failed as (officially at least), they were sold as ways of making legitimate backups of software.

I hadn't seen anybody using a rag over the board when you are using IPA, to clean the flux and then using the tooth brush over it. I was always having problems to clean the flux and your method seems to work perfectly well.

Takes me back, i still got the two Multiface's i bought in the original packaging. 1 for my Spectrum 128k and a Multiface for my Spectrum +3. So great

Awesome ! Great video Noel !

Great video.

Amazing video. I was cracki g games for the c64 back in the day, but I used an action replay mk5 to be able to debug the code and remove copy protection. This did not stop me from learning, because saving a freeze file was considered lame. So the main use for the action replay in this regard was to set a breakpoint on the loading routine, so that we could save the memory before a game would start.

This device was a godsend back in the day. Copying tape games onto disc saved so much time!