[syslinux] help

[Prof S W Damle]

Hello Sir,
 
Shao Miller wrote on Sun 6/20/2010 8:37 AM
 
>> Noticed that with cd and hd options one can create "super CD" and 
> "super HD" images.
>  
> Tried for "super CD" image but NOT successful therefore contacting you

> to get guidelines/instructions for "super CD" & "super HD" images.
 
How did you notice this?
 
This is with reference to as follows:
>imdisk -help
..
..
-o option
cd      Creates a virtual CD-ROM/DVD-ROM. This is the default if the
file
        name specified with the -f option ends with either .iso, .nrg or
.bin
        extensions.
 
fd      Creates a virtual floppy disk. This is the default if the size
of the
        virtual disk is any of 160K, 180K, 320K, 360K, 640K, 720K, 820K,
1200K,
        1440K, 1680K, 1722K, 2880K, 123264K or 234752K.
 
hd      Creates a virtual fixed disk partition. This is the default
unless
        file extension or size match the criterias for defaulting to the
cd or
        fd options.
 
Proceeded further as follows;
 As a trial, for 50mb HD,
50000000/512=>97657 counts
F:\Documents and Settings\Administrator>cd F:\dd-0.5
 
F:\dd-0.5>dd if=\\.\zero of=supHD.vfd count=97657 --progress
rawwrite dd for windows version 0.5.
Written by John Newbigin <jn at it.swin.edu.au>
This program is covered by the GPL.  See copying.txt for details
50,000,384 100%
97657+0 records in
97657+0 records out
 
Downloaded from
http://rghost.net/download/1314553/7dc85564d666d8cd02229087535b473a18983
a3b/WinVBlock_0.0.1.6.zip
 
Extracted WinVBlock_0.0.1.6.zip
Copied "winvblk.exe" to F:\dd-0.5
 
F:\dd-0.5>winvblk attach f:\dd-0.5\image_file.hdd h 0 0 0
I am replied as > CreateFile (2)
 
Where I am wrong?
What next please.
 
SWD.