I think that you need to use the VFS Manager to access the contents of the memory card. The Dm* stuff works only with the databases in the local memory. The card doesn't contain databases - it contains files. You'll need to use one of the VFS conversion functions - VFSImportDatabaseFromFile, VFSImportDatabaseFromFileCustom, VFSFileDBInfo, VFSFileDBGetResource, VFSFileDBGetRecord, etc.
Disclaimer - I've never done this myself. Regards, Vesselin -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
