Index: fat.c
===================================================================
--- fat.c	(Revision 131)
+++ fat.c	(Arbeitskopie)
@@ -1566,6 +1566,14 @@
                 if(raw_entry[i] == ' ')
                     break;
                 long_name[i] = raw_entry[i];
+
+                /* Windows NT and later versions do not store LFN entries
+                 * for 8.3 names which have a lowercase basename, extension
+                 * or both when everything else is uppercase. They use two
+                 * extra bits to signal a lowercase basename or extension.
+                 */
+                if((raw_entry[12] & 0x08) && raw_entry[i] >= 'A' && raw_entry[i] <= 'Z')
+                    long_name[i] += 'a' - 'A';
             }
             if(long_name[0] == 0x05)
                 long_name[0] = (char) FAT_DIRENTRY_DELETED;
@@ -1577,14 +1585,17 @@
                 uint8_t j = 8;
                 for(; j < 11; ++j)
                 {
-                    if(raw_entry[j] != ' ')
-                    {
-                        long_name[i++] = raw_entry[j];
-                    }
-                    else
-                    {
+                    if(raw_entry[j] == ' ')
                         break;
-                    }
+                    long_name[i] = raw_entry[j];
+
+                    /* See above for the lowercase 8.3 name handling of
+                     * Windows NT and later.
+                     */
+                    if((raw_entry[12] & 0x10) && raw_entry[j] >= 'A' && raw_entry[j] <= 'Z')
+                        long_name[i] += 'a' - 'A';
+
+                    ++i;
                 }
             }