Boot in OS9 and you won't see any problem. In 10.1.5, the problem is the same as the "WebDAV folders not mounting" problem; a Finder relaunch or a display of the "Volumes folder" (option+~) allows you to browse the card. In 10.2, I can import my photos with iPhoto, but I can't retreive any other kind of files (.MOV for example). In the Disk Utility, the card is diplayed as "mounted" with this path: /Volumes/MyCardName.
Solution: Launch the Terminal and type (instructions for unix beginners like me):
% cd /Volumes/MyCardNameTry man cp for more info on the copy function. As a reminder, you can find your card's name using the Disk Utility.
% cd MyFolder
% cp *.MOV /Users/MyUserName/Movies
If anyone has a better solution, please publish it! Apple knows about the problem but has no answer to it.

