can you not use the wood 1.64
this is the website you need to look at for that card. it shows on the website that it stopped production on may 15th 2013. so the card will only work on 3ds firmware 6.1.0-12 and ndsi firmware 1.4.5. so if any of your systems are past that then you need to look into a different flashcard. but if you look at the r4download page it says something about 1.76 I would give that a try.
http://www.r4i-sdhc.com/downloade.asp