diff --git a/avr/usbload/dir.c b/avr/usbload/dir.c
index db3aed1..56e346d 100644
--- a/avr/usbload/dir.c
+++ b/avr/usbload/dir.c
@@ -39,8 +39,13 @@ void dir_add_entry(uint16_t id, uint8_t file_name,uint32_t file_size,uint8_t fil
     addr = DIR_ENTRY_LOC + (positon << DIR_ENTRY_SIZE_SHIFT );
     sram_bulk_copy(addr, (uint8_t *) &ent, DIR_ENTRY_SIZE );
     positon++;
+}
 
+void dir_add_header(uint16_t position, uint8_t * header){
+    uint32_t addr;
+    dir_ent_t ent;
+    addr = DIR_ENTRY_LOC + ( position << DIR_ENTRY_SIZE_SHIFT ) + DIR_ENTRY_HEADER_OFF;
+    sram_bulk_copy(addr, (uint8_t *) header, DIR_ENTRY_HEADER_SIZE);
 }
 
 
-
diff --git a/avr/usbload/dir.h b/avr/usbload/dir.h
index 6e82c30..f9307d2 100644
--- a/avr/usbload/dir.h
+++ b/avr/usbload/dir.h
@@ -28,7 +28,8 @@
 #define DIR_ENTRY_LOC           0x010000
 #define DIR_ENTRY_SIZE          64
 #define DIR_ENTRY_SIZE_SHIFT    6
-
+#define DIR_ENTRY_HEADER_SIZE   44
+#define DIR_ENTRY_HEADER_OFF    20
 
 typedef struct {             
     uint16_t    id;                 // 1
@@ -40,7 +41,6 @@ typedef struct {
 
 void dir_entry_start();
 void dir_entry_add_(uint16_t id, uint8_t file_name,uint32_t file_size,uint8_t file_attr);
-void dir_entry_header(uint16_t id, uint8_t header);
-
+void dir_entry_header(uint16_t position, uint8_t * header);
 
 #endif
diff --git a/avr/usbload/file.c b/avr/usbload/file.c
index 6ed89f9..fae69cd 100644
--- a/avr/usbload/file.c
+++ b/avr/usbload/file.c
@@ -178,6 +178,7 @@ void ffls(void)
     uint16_t s;             // fat16 root dir sektoren
 
     if (fat.dir == 0 && fat.fatType == 16) {    // IM ROOTDIR. fat16 
+        printf("Fat16\n");
         for (s = 0; s < (uint16_t) (fat.dataDirSec + 2 - fat.rootDir); s++) {       // zählt durch RootDir sektoren (errechnet anzahl
                                                                                         // rootDir sektoren). 
             lsRowsOfClust(fat.rootDir + s);     // zeigt reihen eines root dir clust an
@@ -185,6 +186,7 @@ void ffls(void)
     }
 
     else {
+        printf("Fat32\n");
         if (fat.dir == 0 && fat.fatType == 32)
             clust = fat.rootDir;        // IM ROOTDIR. fat32
         else