I was bored yesterday so I decided to go on a quest to download my GPS Coordinates from my Lowrance GlobalMap 3200 GPS to my PC. After doing some reading I found that I needed a SD Memory Card reader and I thought I'd also need a new 'blank' memory card. I drove over to Alliance and picked up a reader for 20 bucks and a 128mb SD Card. Low and behold the SD Card that I purchased would not work in my Lowrance unit!??? When I compare the Navionics SD Card that I use for local lakes to the new one I bought it's the same exact size but the card I bought has the metal contacts slightly recessed. My guess is it doesn't make contact with the contacts internally in the Lowrance unit. That was a bummer. Hopefully Walmart will let me return it! Well I was bound determined that this was going to happen yesterday!! I put my Navionics HotSpots SD Memory card back into the unit. I went into a MMC Memory Card menu and saw that the card from Navionics was almost 50% empty! I was a little nervous about reading the GPS points from the base memory of the unit and putting them on card in fear that it would overwrite my hotspots maps that cost 125 bucks! Reading a little further and seeing it let me name the file I was confident that it would be ok. Using the menu options I dumped the GPS waypoints onto the card. That was it for the GPS. On the PC I simply used the card reader I purchased at Walmart to read the file off the SD Card and put it into a folder on my PC. On Lowrance's website they make 2 different software packages, one is free, the other is not. GDM is a software program that is free and allows you to view your waypoins, trails, and routes. You can also edit, add, delete, etc and save the file (for uploading to GPS purproses). Mapcreate 5 or 6 is the other program that is a detailed mapping program with lakes, cities, streets in decent detail. It's primary use is for making your own maps that you can put on an SD card and upload to your Lowrance unit. I also use it occasionally when I'm driving somewhere and get lost!! The cool thing about MapCreate is that you can load the GPS points in and do everything you can do in GDM software but you can also see where the GPS points are on the lakes! The only drawback I've found to the Mapcreate software is that while the lakes are detailed they do not have contour/depth lines on them. My main plan is just to edit the names of the GPS points and then upload them to the GPS again. The biggest reason I wanted to do all this is just in case my GPS ever crashed, I now have a backup of all my waypoints over the years! Does anyone know of any other mapping software with lake details and contour lines? I've seen only one company, http://www.lakemap.com/pcmapping/index.html Does anyone use this software, if so how do you like it?