im saving JPEGS to a cd-r disc, when i put it in the the avic-z1 it says cdrom inserted and the option to take a file from the disc is not availible under the custom background setting, is there anything im missing?

I haven't done it myself, so I'm of no use to you, but if you look in the troubleshooting forum, I know there are a few threads that address this.

all info in this thread
http://www.avic411.com/forum/viewtopic.php?t=118