An update to my situation... I tried it with an old Smart Media card and it DOES play. I have three SD cards, and no luck with any of them. I have two 1GB generic cards and one 256MB sandisk card. The PCMCIA 6-in-1 reader is also sandisk.

Just to experiment, I reformatted one of the three in FAT32 format (vs. the usual FAT format). Still no luck.

Again, all of these cards are fine in their respective pocket pc and camera devices. They all work and read just fine in the 6-in-1 PCMCIA reader when it is inserted in my laptop.

Why won't these cards work in my Honda? Any help would be greatly appreciated. Thanks!