MFM/RLL data recovery

[Randy McLaughlin]

From: "Tom Peters" <tpeters at mixcom.com>
Sent: Monday, April 04, 2005 6:38 PM
<snip>
>>If you are trying to recover files you are probably wasting your time, the 
>>XT controllers used unique formatting and you will never read the data off 
>>of the drives without using controllers indentical with ones used 
>>originally.  It is not good enough to use the same brand or even chipset.
>
> I have been able to read many old MFM drives and the occasional RLL drive. 
> When the original controller was jumpered to lie about head or cylinder 
> count or other facts of drive geometry, I have be largely unable to read 
> those. This was several years ago.
>
>
>
>>Randy
>>www.s100-manuals.com

I would be willing to bet you are talking about 16 bit controllers, most 16 
bit controllers are interchangeable.  Very few 8 bit controllers are 
interchangeable.


Randy
www.s100-manuals.com