diff --git a/mt.c b/mt.c
index 0a5d91f..44a8b3b 100644
--- a/mt.c
+++ b/mt.c
@@ -205,11 +205,14 @@ static struct densities {
     { 0x4c, "T10000C"                        },
     { 0x4d, "T10000D"                        },
     { 0x51, "IBM 3592 J1A"                   },
-    { 0x52, "IBM 3592 E05"                   },
-    { 0x53, "IBM 3592 E06"                   },
-    { 0x54, "IBM 3592 E07"                   },
-    { 0x55, "IBM 3592 E08"                   },
+    { 0x52, "IBM 3592 E05 (TS1120)"          },
+    { 0x53, "IBM 3592 E06 (TS1130)"          },
+    { 0x54, "IBM 3592 E07 (TS1140)"          },
+    { 0x55, "IBM 3592 E08 (TS1150)"          },
+    { 0x56, "IBM 3592 55F (TS1155)"          },
+    { 0x57, "IBM 3592 60F (TS1160)"          },
     { 0x58, "LTO-5"                          },
+    { 0x59, "IBM 3592 70F (TS1170)"          },
     { 0x5a, "LTO-6"                          },
     { 0x5c, "LTO-7"                          },
     { 0x5d, "LTO-7-M8"                       },
@@ -220,6 +223,9 @@ static struct densities {
     { 0x73, "IBM 3592 E06, encrypted"        },
     { 0x74, "IBM 3592 E07, encrypted"        },
     { 0x75, "IBM 3592 E08, encrypted"        },
+    { 0x76, "IBM 3592 55F, encrypted"        },
+    { 0x77, "IBM 3592 60F, encrypted"        },
+    { 0x79, "IBM 3592 70F, encrypted"        },
     { 0x80, "DLT 15GB uncomp. or Ecrix"      },
     { 0x81, "DLT 15GB compressed"            },
     { 0x82, "DLT 20GB uncompressed"          },