64Base images consist of multiple files - a base image, and a set of image extension files.
For pcdMagic to convert 64Base files, three things have to occur:
You must specify 64Base as the resolution to load in Preferences->Conversion Settings. Note that the default setting for pcdMagic is to load only 16Base images, so as to avoid time consuming searches for image extension files.
The directory structure must be the same as for the original CD. 64Base images consist of a 16Base PCD file and a number of image extension files. pcdMagic will only be able to find the extension files if the file structure (the relative locations) of the PCD file and the image extension files are the same as for the original Photo CD.
pcdMagic's File Browser window should be open to the root of the directory containing the original CD's file structure. (The directory containing the CDI and PHOTO_CD subdirectories).
You must open the Base file in pcdMagic - it will then find the extension files.
NOTE: It's very important that pcdMagic's file browser be opened to the root of the Base64 CD file structure, as described in (3). If this is not done, than pcdMagic will not be able to access the IPE files, and Base64 images will load as Base16
The directory structure must look as follows (by way of example):
The critical part is that the relationship between the base file (e.g., IMG0001.PCD, the file you will open) and the extension files (for IMG0001.PCD, the C1_0001.ICR, C2_0001.ICR, INFO.IC, Y0001.ICR and Y0001.ICR in the IPE\IMG0001\64BASE\ subdirectory) must be as shown above. The process that pcdMagic follows is reverse out from the location of the base file to the CD root directory (PHOTO_CD in this case), then find the extension files relative to that.
pcdMagic is not sensitive to what the CD root directory (in this case the PHOTO_CD directory) is, but is sensitive to anything below that - the IMAGES and IPE subdirectory naming, and the names of any subdirectories and files in them.