Why can't I have multiple maps???

When I use the line: /media/mmc1/maps/navit/*.bin in my XML I get no maps at all...

And yes I do have maps there. If I specify florida.bin or gerogia.bin it works fine, but I travel a lot and was hoping to not have to modify that line when I travel between states...

OR.. Is there a way to combine the 2 states into one file and use it that way???

I am using the CloudMade Maps