struct CatKeyRec {
        SInt8           ckrKeyLen;      key length (SignedByte)
        SInt8           ckrResrv1;      reserved (SignedByte)
        SInt32          ckrParID;       parent directory ID (LongInt)
        UInt8           ckrCNameLen     length of catalog node name (part of Str31)
        Char            ckrCName[31];   catalog node name (part of Str31)
};
