Can I change the default path when Copying a CD/DVD to an image file in Brasero?

I'm guessing you are using the image burner to write an ISO to your system... Is that right?

Yes, that's correct. I know I can specify an alternate location for the ISO at the time I copy it, but I would like to change the default path so I don't have to do it every single time.

could try:

brasero /path/to/output/folder

Maybe, is there a man page if you run:

man brasero

?

I checked both
brasero --help
and
man brasero

you can run it command line, but I only see an option for --copy=PATH where path is the path to the device being copied, not the path the destination file.

Good idea though, I hadn't really thought to check there yet.

I had encountered the same problem lately. Could not change the default destination path for brasero.iso image file. I have noted however that when audio project is selected, then the file extention is being changed to .cue

My guess would be that the path is hard coded into the application. At least brasero makes use of "g_get_home_dir" function call.
I also tried gconf-editor and the only path that I found there was for tmp dir. This is weird as changing the destination path within application GUI is very common. In fact, I do not have enough room in my home folder for DVD iso image to start with. There is an external drive attached to the PC however which I could use. Am I missing something? Or should this design flaw be reported in the bug section?

Ok, so here is the deal. The only configurable path is the working directory via gconf-editor, look for "tmp" key in brasero section.
There is no way to change he default destination path for the ISO image. Even worse, there is no way to specify the destination for resulting ISO image if you choose to create an image from a collection of files rather than burn them right away. This thing is hard coded into brasero. I filed the bug on GNOME bugzilla, and it seems that is not going to change. And I am not going to fork the project just to add a dialog. To me, to be able to choose a destination path is a standard. This means it should be coded into mainstream brasero application. On top of that, hard coded paths is a bad programming practice, and therefore project maintainers should be pressed to adopt the change in both command line options and the GUI, including preferences dialog. For anyone interested, the link to the bug report is https://bugzilla.gnome.org/show_bug.cgi?id=668405

I count on the community to kindly ask the right people to add those minor changes to the next version of brasero app. Until then, gnomebaker 'just works'.