Hey there! Are you one of those who have a SD Mapper cartridge? Well, I've got some great news for you!
I recently tested a cheap ESP12S/ESP8266 based SD card adapter, which is like a superhero of adapters. It's commonly used to send GCODE files to 3D printers, but here's the kicker - it can also update the content of the SD Mapper card on the fly when inserted on MSX computers!
No more annoying problems when you want to include include new files to the SD card and need to remove, insert on a PC adapter, copy files, remove from the adapter, re-insert on the SD Mapper!
The board works SUPER WELL. To prove it, I made a quick video showing it in action. You can check it out here: https://youtu.be/O15YoFY2hrw
And guess what? You can purchase this wonder gadget on AliExpress, where they specialize in bringing you the "best things" that China has to offer. So head on over there and grab one of those. Here's the link: https://s.click.aliexpress.com/e/_Dn4v55B.