Pentax PEF files
EXIF tagged PEF files fail to display correctly in HoudahGeo as well as in many other applications. They will however open in Pentax's software or Adobe Photoshop. This bug is fixed in Mac OS X 10.5.4.
Canon CRW/CIFF files
Canon CRW/CIFF files do not support GPS related IPTC of XMP tags. Thus these files cannot directly be written to. You may however create XMP sidecar files. The newer CR2 file format however is fully supported.
Lightroom Libraries
The pre-loading of Lightroom libraries is rather slow. Performance degrades dramatically as the size of your Lightroom library grows. Please consider turning this feature off. It is only needed for HoudahGeo to be able to export the latest versions of your images to Google Earth, Flickr or Locr. It is NOT needed for successful geotagging.
DNG files
Adobe's DNG converter supposes that both the computer and the camera share the same time zone. The computer time zone information is embedded in the DNG at the time of the conversion. From then on camera time zone settings are ignored as the information attached to the image takes precedence. Always make sure computer and camera time zones match when converting from RAW to DNG.
Google Earth 4.3: Fails to show images
There is a bug in the current beta of Google Earth 4.3. It fails to correctly display KMZ files. The Windows version is not affected.
The first placemark description balloon to be opened displays correctly. Further placemarks no longer load images. Returning to the first placemark, it is still displayed correctly.
Workarounds:
1. This bug affects KMZ files only. Rename your *.kmz file to *.zip and decompress it. Now you can open the HoudahGeo.kml file located within the newly created folder. You may also use HoudahGeo to create KML files with no base URL.
2. Upgrade to Google Earth 5.0 (beta) and use that version for viewing KMZ files.