Why on my multi-partition ATA card only first partition is visible?
Reason: In difference with Windows 2000 and Windows XP Windows Vista supports only one partition on the Removable media. If your ATA card contains more as one partition, only first partition may be visible.
 
Solution:For see all partitions on multi-partition ATA card, open CardWare Memory Cards Viewer and select "Options" in menu "Tools".

In Options Dialog check "Threat ATA card as hard drive" checkbox and reboot.

All partitions will be visible thereafter.