Posts: 726
Location: Eau Claire, WI | It will stay intact as long as the card is physically OK. bad pins, bending, flexing, extreme temps, all of it can happen though so back it up. If you have the data on the card, on your Hard drive and on some other portable storage device you should have plenty of redundant sources. If you're ultra worried, keep one copy in a fire safe or at another location like a safety deposit box or someone's house or your office, etc.
You can reload it over and over. I do back ups a few times in a season and then I copy them to my PC and save it with the date in the file name so I know which was the most recent back up. Then using Easy GPS, I separate the data by lake and resave to the hard drive as lost land, mille lacs, atlantic ocean, etc. I make a cd copy of the entire directory and I'm done.
When I'm heading to a lake I have data for, I load my MMC (SD actually) with the lake data I need and import it into my 332. I also load my ifinder with the same data and bring it along so that if I have a failure, I have a back up. I can also use it on my bow. Works for me.
Jono
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