Thanks for the info guys, I use Reef Master and its a magic program, Thing is though I also have Humminbirds and Ive been driving round collecting as mush data as possible and digitizing from paper charts and making my maps and I am very happy with the results.
But as RM uses tracks to create the chart in the HB unit and my maps are large I thought I may run out of storage room in the HB unit, So was thinking Auto Chart might be the go, But I was disappointed to see a lot of the import formats had been removed. I will give bigdaddyguns suggestion of gpsbabel a go.
Just out of interest does any one know how much storage space there is for track files in a HB 1198 ?