Rikki, I can't see any problem in naming the company that produces the card. You would merely be making a statement of fact, that this card does not work, when used in a particular application ie. with the Panasonic SD Audio Writing Kit.
You are not saying anything false or libellous. Also, it would help other user to avoid buying this card, if they intend to use it in the application in question.
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Willum
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Willum
After silence, that which comes nearest to expressing the inexpressible is Music.
Aldous Huxley
( especially when the music is played on a KN7000....)