opinions folks?

[theguvnor]

http://cgi.ebay.co.uk/CONVERT-ANY-L...tEquipment_Accessories_SM?hash=item45f0d60631

 

[fireball]

so £6.5 for a bit of software ... no charts ... please note - NO CHARTS ....

or

http://opencpn.org/

which is free - also no charts ...

I'd go for the second!