Here’s a little hack to enable you to use Ricoh GX100 RAW files in Apple’s Aperture.
Make a backup of the following file:
Find the key for the Leica D-LUX 3 (line 3316 in MacOS 10.5.1):
3316: <key>Leica D-LUX 3</key> <string>Panasonic DMC-LX2</string> <!-- 10.4.10 -->
Then insert the following line before the line showing the Leica D-LUX 3:
3316: <key>RICOH Caplio GX100</key> <string>Panasonic DMC-LX2</string>
You should now be able to use the Ricoh’s RAW files in Aperture.
This is based on a previous hack (detailed here), which doesn’t apply to Leopard.