Hey , lol

I think you edit this file in a text editor: /etc/gdigicam/gdigicam-camerabin.conf.

I use midnight commander for all my file movements / edits.
but you can use any text editor that can use root privileges, or a explorer so that you can move the file to MyDocs and edit with n900 'Notes' app.

Edit: just tried this cant get it to work yet. still saving as jpeg.