Re: Did Commodore cheat with the quad density floppies?

----- Original Message ----- 
From: "smf" <smf@null.net>
To: <cbm-hackers@musoftware.de>
Sent: Tuesday, January 08, 2019 8:54 PM
Subject: Re: Did Commodore cheat with the quad density floppies?


> On 09/01/2019 00:27, Mike Stein wrote:
>> Yes; I think that's sort of what I said in my reply to Mia:
>> "HD controllers generally could indeed support DD media... instead of switching speed on dual-speed drives most controllers just emulated the slower speed by changing the transfer rate."
> 
> Earlier you made it sound like you couldn't have a DD and HD drive & I don't think that statement retracts that assertion.
-- 
Well, my reply started with an apology (for having misspoken) and a correction: "what I was thinking of was drive speed" 

If you read "HD controllers could indeed support DD media.. by changing the transfer rate" as meaning something substantially different than "you could have a low density drive and a high density drive & it would adjust the transfer rate as required" then I guess we're not talking the same language. 

But it does sound as though you're suggesting that you need two different and separate drives to read both types of media, which is of course not true. And why would you adjust the transfer rate with a DD drive?.

Sheesh!