ZX Spectrum disk interfaces

Liam Proven lproven at gmail.com
Tue Sep 15 12:11:14 CDT 2015

A question born only of idle curiosity.

In thge 1980s, I bought an MGT +D disk interface for the Sinclair ZX Spectrum:


In the end, I traded mine in for its upmarket cousin, the DISCiPLE:


(I link to WP as I originally wrote those articles, IIRC. :-) )

I have noticed that multiple people have now cloned the +D:



But this post, from FB, claims that the Beta Disk interface can handle
high-density drives, giving 1.5MB per disk:


Given that HD floppies and drives are far more readily-available than
DD these days, how come most 8-bit interfaces can only handle DD? Is
it purely a data rate issue?

Liam Proven • Profile: http://lproven.livejournal.com/profile
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