Dale Estes
I do put pretty much everything on the sd card, putting only what I currently need for the trip into internal memory. After a bit of searching I found that the tracks also get written to an archive on the gps. You can use a file manager to look at the directories on the gps, and if you look under “Garmin/GPX/Archive” (your directory structure may vary) I found three archive files there, and they had all of my tracks, so I was able to recover day 1 and 2 from there. You can just copy the .gpx files from the unit to your hard drive and then import into Basecame (or Mapsource) and go from there.