I believe you need to find out the save file size first.
I found out the easiest way to do this is run it through VisualBoyAdvance.
Look at the save file size.
Just pick A 1 size(8, 16, 32, 64...)
If you don't know what I am talking about, then you need to Reread the doc
comes with the F2A.

=>Hi everybody... i'm trying to get the .sav file from my original gba
=>cartridge "The legend of Zelda: a Link to the past"... i'm using a usb
=>linker cable and usb writer software, along with a 256 Mbit flash2advance
=>cart... anyone can explain me how to manage .sav files out of my original
=>games?
=>Thanks.
=>

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We (all things) are made of Atoms.
http://home.earthlink.net/~rachel1689/

Hi,
You might like to read the following article about managing your save files.

http://207.44.176.77/~admin28/gbaemu/faq/faw3xsave.htm

Regards
Erica