+#define CPMFS_HI_USER (0x1<<0) /* has user numbers up to 31 */
+#define CPMFS_CPM3_DATES (0x1<<1) /* has CP/M+ style time stamps */
+#define CPMFS_CPM3_OTHER (0x1<<2) /* has passwords and disc label */
+#define CPMFS_DS_DATES (0x1<<3) /* has datestamper timestamps */
+#define CPMFS_EXACT_SIZE (0x1<<4) /* has reverse exact file size */
+