From: PCBman (deepthought_at_ix.netcom.com)
Date: Mon May 16 2005 - 07:43:58 PDT
John,
I have had the Memory Card Explorer software and hardware for some
time now. In fact, I think I mentioned this in a previous email when I reported
a successful backup of a Fodor rom card.
The reason you were unable to backup a 4MB image to a 8MB card
is due to attribute memory.
Cards can be made with or without attribute memory. The attribute
memory, among other things, tells a device how big physically the card is.
It is a separate bit of memory but is mapped to the same addresses the
first sector ocupies. The length varies depending on the size of the card.
Bottom line: If you have an 8MB card w/attribute memory it will report this
to the device. Putting a 4MB image on it won't work as the attribute
memory will report a bigger card.
Solution:
Buy a PC card writer that can write to the attribute memory (hard)
Buy a card with no attribute memory (easy)
A card without attribute memory will accept any image small enough to
fit on it AND will work.
Regards,
PCBman
-----Original Message-----
From: John Royston <jroyston_at_gmail.com>
Sent: May 14, 2005 12:14 AM
To: newtontalk_at_newtontalk.net
Subject: [NTLK] FYI Sucess Copying MEMORY Cards on PC
I have been using it with 8mb Centennial Tech Cards FL08m-20-11138-67
It apparently will work for like size cards. I have imaged a 4mb card
EDGE pcml-00-004m-seratt and put it back on that card but 4mb image
will not go on an 8mb card. I can not test much due to not having a
lot of memory cards. But I can confirm
4) 4mb to image to 8mb card will not work.
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