Emax

Are the two unknown bytes in the format structure per bank/file or per disk? 
I guess they could be some kind of checksum. 

I have only ever had a 100MB Zip drive and an original 40MB hard disk 
working with my Emax II. As you said, the Zip disks need to be formatted on 
the Emax II to work. 

For some reason the SCSI CDROM drives I have tried do not work with the Emax 
II. I can import the Emax II CDROM banks into an Esi-2000 with the same 
drives but the Emax II cannot see them. 

I am planning to try a few different SCSI flash card options soon to see if 
I can get that to work instead. I have some 512MB, 1GB and 2GB compact flash 
cards so I could try formatting to larger capacities. I made a SCSI-IDE and 
IDE-CF setup that worked on my K2500X but the Emax II could not see it, it 
seemed like the same problem as with the CDROM drive. But if I can get it 
working I will try formatting larger capacity cards. 

Regards, 

Tristan 

When I get a chance I plan to try getting a 

Sunday, October 7, 2007, 12:46:31 PM, you wrote: 

>
I don't know the maximum size, the biggest one I've seen so far is
632 MB (CDROM), but that's because I don't have any HD here of more
than 510 MB, so I can't test larger sizes. Maybe I'll try to use a
1GB jaz drive once and see what happens :-) 

EMXP can not format harddisks itself. It can however create
diskimages which should be restored to EMAX formatted disks.
For some disks it may be OK to simply format them on a Mac or PC
first and then copy the image to that disk with EMXP.
But I'm using ZIP disks and I know that these disks HAVE to be
formatted on an EMAX-II first. If they have been only DOS formatted,
the restore may succeed in EMXP but the EMAX-II will still report
that the disk is "not an EMAX drive". 

The maximum imagesize that can be created by EMXP for EMAX-II is
632MB. I'd love to support larger sizes, but I always need at least
one disk that has been formatted to size X before I can built in
support for size X in EMXP. That's because I "only" have 99.99% of
the specifications of the EMAX-II disklayout. The last 0.01% are two
bytes (!) for which I have no algorithm or description and which
(unfortunately) are important to avoid the "Not an EMAX drive" error.
Since I'm missing the algorithm to create these bytes, I'm simply
hard copying them from the example disks I have :-) 

So if anyone succeeded in formatting REMOVABLE disks or are using
CD's with other sizes than 100MB (zip), 250MB (zip) and 632MB (CD)
they're welcome to contact me :-) 

Regards 

///E-Synthesist 

 --- In emax@yahoogroups.com, "Tristan Upton" <tu@...> wrote:
>
> Interesting, I was not aware of that. So, do you know what maximum 
capacity
> the Emax II can physically format a hard disk to? Is it possible to 
use EMXP
> to format a hard disk to 850MB and then have the Emax II access it?  
> 
> Regards,  
> 
> Tristan  
> 
>