How do you transfer photos taken on a DSi from a SD card onto a mac book?

If your macbook has an SD reader, take the SD card out of your DSi and insert it into the reader. The macbook should automatically recognize it and an icon for the card should appear on your desktop. Photos saved to the SD card should be saved within the DCIM folder and can be moved and copied like any other file.

When taking the SD card, you must drag its icon to the trash to cleanly unmount the card before removing it.