Buy a second SD card and always program two cards when you do any changes and have that second card as a backup if your computer blows up and the scanner trashes your SD card or you by mistake erase it.
If you got a Windows computer then click on the windows start icon or use the windows button on the keyboard and enter CMD. Start that cmd.exe program and a dos command window will appear.
Then type and hit Enter:
dir c:\*.hpd /d
and the window will show where and if you have any favorite lists left on your C: harddrive.
/Ubbe