I have only tried brand name cards myself (SanDisk, Memorex, Delkin) so I can't provide any information on the no-name ones. However, the brand name usually gives you a kind of assurance that the card will be defect free and long lasting. I for one would at least not trust a card type which I know nothing about for my photos.
Reykjavik Aviation Photography - Just bring the aircraft to us and we'll photograph them! :-)