Ah. I know that. Microsoft aren't well known for being helpful to anybody but themselves.

The first license is for removable solid state media like Compact Flash.

The list of devices that are covered by the second license is "portable digital still cameras; portable digital video cameras; portable digital still/video cameras; portable digital audio players; portable digital video players; portable digital audio/video players; multifunction printers; electronic photo frames; electronic musical instruments; and standard televisions"

This means my next digital camera which uses FAT will have a Microsoft tax added to pay for the license. Great...

I'm okay with charging a fee for using IP but I don't think they should decide to do it after everybody has implemented it in their products. I've looked at the FAT specifications before and there wasn't any mention of needing to license it from Microsoft.