Will never read or use them.Yes it is necessary to use the proprietary Navionics Reader to be able to use the cards with Navionics compatible software. But there is no way you can use the info on the cards as it is protected by serious encryption.To original poster - Forget trying to use navionics in any plotting other than plotters that state clearly Navionics. I shall be called a liar? CF cards I have no idea about as I use SD / MMC. Reading such learned posts above - I shall not say that I have read Navionics cards in standard readers.

If I was trying to do this ( not that I ever would you understand ) I'd start investigating by copying a card with an embedded device that didn't go anywhere near any Windows or DOS functionality.Using a CF signal analyser might be a good step too.:):). I suspect that they have also screwed with the hardware wiring and/or the format of their proprietary reader so that it would present a challenge to people trying to read their can use a standard CF card in a Raymarine device for transferring waypoints and application upgrades so there must be compatibility at the hardware layer.The trouble with pugging in to windows based machines is the hardware abstaction layer of the OS that attempts to go and do things to media automagically without the users intervention.

Navionics Charts on compact flash cards come with dire warnings not to put the cards into readers and connect them to a pc. The cards can corrupt even while in the gps as mine did.It was working fine untill i noticed that while en route half of the chart was blanc.When i tried to forward it to the blanc area the whole screen went blanc.The point is that you're buying something or the right to use it and then because of limited life of storage means you get the wrong end of the stick.Shouldn't we at least have the right to bring it back to the dealer and they replace the chart at the cost of the storage means? Why pay again for the same right of use?

At least that is what the article said and the poster was not impressed, but I guess its there way of protecting copyright. As I use Navionics it was the reason which drew me to the post.Someone did exactly as you say & the outcome was again as you suggest. Has anyone tried it.and what happened?Were they rendered useless as Navionics suggest that they would be?.Just curiousOnly last week I was reading a posting on this very subject.

Navionics crack keygen