Quote Originally Posted by Humminbird_Greg View Post
The largest software update that I have seen was less than 20MB in size so even an old 32MB MMC memory card could be used. Future software updates may be larger though so I would look for a larger memory card than that. I don’t think that you could easily find anything smaller than a 2GB SD memory card now, so this should not be a worry.
Thank you sir--I appreciate it. Do you mind if I PM you with questons--from time to time? Just got the 597 and am very new to the GPS DI stuff.