DOC formatting problems

[raji lakshmi suresh]

hi all,
   i have a DISKONCHIP 2000 and i am unable to format it.
my BIOS recognizes the DOC but while i try to format it using the firmware (doc504.exb) i get a format failure message.

i am using the DOC in an ISA board in a pentium machine.
(address c8000)
the actual messages i got are below.

formatting DOC with doc504.exb
command : dformat /win:c800 /s:doc504.exb

DFORMAT Version 5.0.4.10 for DOS
Copyright (c) M-Systems ,1982-2001
WARNING : All data on Disk On Chip will be destroyed
Continue ? Y/N

Formatting
Virgin card  rebuilding unit map
Media has been scanned
Error formatting Disk On Chip

Status code is 64(flvolume too small) recieved from flformatphysical Drive
Format failed

formatting DOC with ! (no firmware)
command : dformat /win:c800 /s:!

DFORMAT Version 5.0.4.10 for DOS
Copyright (c) M-Systems ,1982-2001
WARNING : All data on Disk On Chip will be destroyed
Continue ? Y/N

Formatting
Virgin card  rebuilding unit map
Media has been scanned
40 of 2048
Error formatting Disk On Chip

Status code is 29(flwritefault) recieved from flformatphysical Drive
Format failed

my DINFO command gave this :

DINFO Version 5.0.0
Copyright (C)M-Systems 1992-2001

Flash Media statistics

Software version could not be found
Flash Device type : DiskOnChip
Media Type        : Samsung KM29V64000
Unit size         : 8192 Bytes
Media size        : 16 MBytes
Chip size         : 8 MBytes
No. of chips      : 2
Unformatted media

i am new to this so any one kindly help.