SD cards reported as WORKING:
============================
  ADATA 4GB $8 worth Operating voltage is quoted at 2.7 – 3.6
  Agfa brand digital film card
  Crucial Micro, 1 GB FAT32
  Digitech2Gb SD card from Dick Smith's
  FUJIFILM SD 512MB
  Kingston 2GB SD (part number SD-M02G)
  Lexar platinum II 8 Gig SDHC card
  Lexor 4  Gb sd hc mem sd card from BigW 10 bucks
  LX series 16 Gb, SDHC, Class 10
  Sandisk Ultra II, 2 Gb, SD works fine
  SanDisk 128M
  SanDisk Micro SD 512MB
  Sandisk 2GB SD from MSY for $7
  Sandisk  8Gb microSD SDHC card into SD converter
  SanDisk Ultra II, 4 GB
  Secure Digital 128Mb SD (generic)
  Transcend 4Gb SDHC 6 card
  Verbatim SD cards, one 2GB formatted FAT, and one SDHC 4GB which is formatted FAT32. SD 512MB

SD cards reported as NOT working:
=================================
  Dick Smith brand 4 GB
  Kingston 4Gb microSD SDHC card into SD converter.
  SanDisk 4GB
  Transcend 2G MicroSD: The card is fine, works on PC (And camera). But 'Error Accessing the SD card' when used in the Maximite

Many SD cards seem to be sensitive to the power supply voltage.  Check that the Maximite 3.3V line is 3.3V +/- 0.1V.
  
This list was compiled by Don McKenzie with input from many people.