This is a ROM dump of an early Betadisc interface

The interface is dated as 1984 and the ROM identifys itself as V3.0

I used a SAVE "rom" CODE 0,16384 to save to disc

RAND USR 15363 is used to page in the trdos rom for this model

I then quit to the normal Sinclair ROM and loaded the image via

CLEAR 30000
RANDOMIZE USR 15363 : REM : LOAD "rom" CODE 32768

& saved via

SAVE "rom" CODE 32768, 16384

I hope this helps somebody in some fashion

I then reloaded the resultant wav file into Spin and simply saved the chunk of ram ($8000 => $c000) to disc

Regards,

Rob... (kilby.cta102@gmail.com)