diff --git a/diskimg/Gutenberg.cpp b/diskimg/Gutenberg.cpp
index 1dc10e6..e64fb8e 100644
--- a/diskimg/Gutenberg.cpp
+++ b/diskimg/Gutenberg.cpp
@@ -22,7 +22,7 @@ const int kMaxVolNameLen = 9;
 const int kSctSize = 256;
 const int kVTOCTrack = 17;
 const int kVTOCSector = 7;
-const int kCatalogEntryOffset = 0x20;   // first entry in cat sect starts here
+const int kCatalogEntryOffset = 0x10;   // first entry in cat sect starts here
 const int kCatalogEntrySize = 16;       // length in bytes of catalog entries
 const int kCatalogEntriesPerSect = 15;  // #of entries per catalog sector
 const int kEntryDeleted = 0x40;     // this is used to designate deleted files
diff --git a/linux/MDC.cpp b/linux/MDC.cpp
index 4eb50cd..ce62b9d 100644
--- a/linux/MDC.cpp
+++ b/linux/MDC.cpp
@@ -348,9 +348,10 @@ LoadDiskFSContents(DiskFS* pDiskFS, const char* volName,
         if (strlen(ccp) == 0)
             ccp = kBlankFileName;
 
-        if (subVolName[0] == '\0')
-            strcpy(dispName, ccp);
-        else {
+        if (subVolName[0] == '\0') {
+            strncpy(dispName, ccp, sizeof(dispName));
+            dispName[sizeof(dispName) - 1] = '\0';
+        } else {
             snprintf(dispName, sizeof(dispName), "%s:%s", subVolName, ccp);
             //dispName = subVolName;
             //dispName += ':';
@@ -470,6 +471,9 @@ LoadDiskFSContents(DiskFS* pDiskFS, const char* volName,
         case DiskImg::kFormatRDOS3:
             fmtStr = "RDOS  ";
             break;
+        case DiskImg::kFormatGutenberg:
+            fmtStr = "Gutenb";
+            break;
         default:
             fmtStr = "???   ";
             break;
diff --git a/mdc/Main.cpp b/mdc/Main.cpp
index 5fd9f87..b3c7266 100644
--- a/mdc/Main.cpp
+++ b/mdc/Main.cpp
@@ -856,6 +856,9 @@ int MainWindow::LoadDiskFSContents(DiskFS* pDiskFS, const char* volName,
         case DiskImg::kFormatMSDOS:
             fmtStr = "MS-DOS";
             break;
+        case DiskImg::kFormatGutenberg:
+            fmtStr = "Gutenb";
+            break;
         default:
             fmtStr = "???   ";
             break;