Hi Diki,
I'm only guessing, but I think the loops reffered to are midi drum loops not audio drum loops . As you said, there wouldn't be a great deal of space on a floppy disk to fit much in the way of audio drum loops.
I've created a few for my korg, a 1 bar loop (on average) equals 1mb.

I'm inclined to think, the styles use the onboard "Live Drums" and they've created some new midi drum loops for the styles.
Maybe Dan can correct me if I'm wrong.

Ketron even gave us some drum loops ( midi) for the sd2.They were midi phrases in various genres that used the Live Drum sets in the SD2. Live drum sets are nothing like your normal gm/gs drum sets ( as you probably already know).

best wishes
Rikki

Quote:
Originally posted by Diki:
How much audio information could it fit on there if it was able to fit on a disk?

That's not a lot of memory (maybe 1MB after you allow for the style itself) for four loops and fills, intros, endings etc..

What sampling rate and bit depth are the loops?

Decent price, though. I am amazed not every Ketron owner doesn't already have them...
_________________________
best wishes
Rikki 🧸

Korg PA5X 88 note
SX900
Band in a Box 2022