Recently I bought a used Master on eBay and it’s a testament to its quality that the 20 year old model runs as well as the original.

Before buying the Master I used the BeebEm emulator (and I still do!) which is excellent, I wrote JBeebEmROM to help me manage the ROM slots in BeebEm - it has been tested with version 2.3 only.

You can download it from the link below, unzip it to a directory of your choice, there is a text file in the zip with instructions for its use.

It is written in C# so you need the MS .NET framework installed (see link on main downloads page).