We need you back bro

This is awesome! I didn't even know it was possible. Good work!

I wondered if this might be possible. (More whether there was any reason you couldn't write a cassette loader for one 8-bit machine that could load in data for another 8-bit routine. The converter is also a nice touch in that you're actually doing something useful with the data. The baud rate of the Spectrum was always faster than for the Commodore 64 so was the Commodore capable of loading Spectrum standard loader data or was there something fundamentally problematic in doing it? (Timing, volume, baud rate?)