diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/MovieFast/MovieFast.c b/rtos/code/application/source/cardv/SrcCode/UIApp/MovieFast/MovieFast.c
index 6252c77a2..c2079f0a6 100644
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/MovieFast/MovieFast.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/MovieFast/MovieFast.c
@@ -102,6 +102,11 @@ static lfqueue_t write_queue = {0};
 
 //local variable
 static DCF_HANDLE g_dcf_hdl = 0;
+
+#if	(FS_MULTI_STRG_FUNC)
+static DCF_HANDLE g_dcf_hdl2 = 0;
+#endif
+
 static ID MOVIEFAST_FLG_ID = 0;
 static UINT32 g_moviefast_tsk_run = 1;
 static UINT32 g_moviefast_poweroff_tsk_run = 1;
@@ -852,6 +857,16 @@ static void MovieFast_OnRecStop(void)
 
 }
 
+static DCF_HANDLE MovieFast_Get_DCF_Handle(void)
+{
+#if	(FS_MULTI_STRG_FUNC)
+	/* check free space here */
+	return g_dcf_hdl2;
+#else
+	return g_dcf_hdl;
+#endif
+}
+
 static void MovieFast_FileNamingCB(MOVIE_CFG_REC_ID id, char *pFileName)
 {
     //1. The FileID and DirID is set at booting.
@@ -863,7 +878,8 @@ static void MovieFast_FileNamingCB(MOVIE_CFG_REC_ID id, char *pFileName)
 		DBG_ERR("Exceed max dcf file!\r\n");
 		pFileName[0] = '\0';
 	} else {
-		DCF_GetNextID(&nextFolderID,&nextFileID);
+		DCF_HANDLE handle = MovieFast_Get_DCF_Handle();
+		DCF_GetNextIDEx(handle, &nextFolderID,&nextFileID);
         if(DrvGPIO_GetPhotoMovieModeFromMonitor() == DX_HUNTING_MODE_MOVIE2)
         {
             Movie2_nextFolderID = nextFolderID;
@@ -900,8 +916,8 @@ static void MovieFast_FileNamingCB(MOVIE_CFG_REC_ID id, char *pFileName)
                 }
             }
         }
-		DCF_MakeObjPath(nextFolderID, nextFileID, DCF_FILE_TYPE_MP4, pFileName);
-        DCF_AddDBfile(pFileName);
+		DCF_MakeObjPathEx(handle, nextFolderID, nextFileID, DCF_FILE_TYPE_MP4, pFileName);
+        DCF_AddDBfileEx(handle, pFileName);
         DBG_DUMP("%s added to DCF\r\n", pFileName);
         #if HUNTING_CAMERA_MCU == ENABLE
         char tmp[NMC_TOTALFILEPATH_MAX_LEN] = {'\0'};
@@ -1198,6 +1214,26 @@ THREAD_RETTYPE MovieFast_InitFileNamingThread(void *arg)
 		DCF_SetDirFreeChars(DCF_DIR_NAME);
 		DCF_SetFileFreeChars(DCF_FILE_TYPE_ANYFORMAT, DCF_FILE_NAME);
 		DCF_ScanObj();
+
+#if	(FS_MULTI_STRG_FUNC)
+		{
+			DCF_OPEN_PARM dcfParm = {
+				.Drive = 'B',
+				.WorkbuffAddr = mempool_dcf + POOL_SIZE_DCF_BUFFER,
+				.WorkbuffSize = POOL_SIZE_DCF_BUFFER,
+			};
+			g_dcf_hdl2 = DCF_Open(&dcfParm);
+			if(g_dcf_hdl2 < 0){
+				DBG_ERR("get dcf handle error!\n");
+			}
+
+
+			DBG_WRN("DCF_ScanObjEx emmc handle=%d\n", g_dcf_hdl2);
+			DCF_ScanObjEx(g_dcf_hdl2);
+		}
+#endif
+
+
         #if HUNTING_CAMERA_MCU == ENABLE
         if(TRUE != sf_is_card_full())
         #endif
@@ -1894,6 +1930,11 @@ static void MovieFast_Close(void)
 EXIT:
 
 	DCF_Close(g_dcf_hdl);
+
+#if	(FS_MULTI_STRG_FUNC)
+	DCF_Close(g_dcf_hdl2);
+#endif
+
 	DCF_UnInstallID();
 
 	vos_flag_destroy(MOVIEFAST_FLG_ID);
diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
index 4b9102435..5484fb608 100644
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.c
@@ -88,7 +88,11 @@ static CHAR                g_photo_fast_write_file_Path[NMC_TOTALFILEPATH_MAX_LE
 static INT32               g_photo_fast_id_mapping[PHOTO_CAP_ID_MAX]             = {-1,-1};
 static PHOTO_FILENAME_CB   *g_fpPhotoFastFileNameCB = NULL;
 static DCF_HANDLE g_dcf_hdl = 0;
+
+#if	(FS_MULTI_STRG_FUNC)
 static DCF_HANDLE g_dcf_hdl2 = 0;
+#endif
+
 static HD_PATH_ID      g_video_enc_path[PHOTO_ENC_JPG_TYPE_MAX_ID] = {0};
 static UINT32          g_bVideoEncPathStart[PHOTO_ENC_JPG_TYPE_MAX_ID] = {0};
 static HD_VIDEOENC_BUFINFO g_enc_buf_info[PHOTO_ENC_JPG_TYPE_MAX_ID] = {0};
@@ -737,12 +741,6 @@ INT32 PhotoFast_FileNaming_Open(void)
 
 
 		DBG_WRN("DCF_ScanObjEx emmc handle=%d\n", g_dcf_hdl2);
-//		DCF_SetParm(DCF_PRMID_REMOVE_DUPLICATE_FOLDER, TRUE);
-//		DCF_SetParm(DCF_PRMID_REMOVE_DUPLICATE_FILE, TRUE);
-//		DCF_SetParm(DCF_PRMID_SET_VALID_FILE_FMT, DCF_FILE_TYPE_JPG|DCF_FILE_TYPE_MP4|DCF_FILE_TYPE_MOV);
-//		DCF_SetParm(DCF_PRMID_SET_DEP_FILE_FMT, DCF_FILE_TYPE_JPG|DCF_FILE_TYPE_WAV|DCF_FILE_TYPE_MPO);
-//		DCF_SetDirFreeChars(DCF_DIR_NAME);
-//		DCF_SetFileFreeChars(DCF_FILE_TYPE_ANYFORMAT, DCF_FILE_NAME);
 		DCF_ScanObjEx(g_dcf_hdl2);
 	}
 #endif
@@ -761,8 +759,10 @@ INT32 PhotoFast_FileNaming_Close(void)
 		}
 
 #if	(FS_MULTI_STRG_FUNC)
-		DCF_Close(g_dcf_hdl2);
-		g_dcf_hdl2 = -1;
+		if(g_dcf_hdl2 >= 0){
+			DCF_Close(g_dcf_hdl2);
+			g_dcf_hdl2 = -1;
+		}
 #endif
 
 		DCF_UnInstallID();
@@ -881,23 +881,29 @@ void PhotoFast_FileNaming_SetSortBySN(CHAR *pDelimStr, UINT32 nDelimCount, UINT3
         DBG_ERR("No set Delim String!!\r\n");
 }
 
+DCF_HANDLE PhotoFast_Get_DCF_Handle()
+{
+#if	(FS_MULTI_STRG_FUNC)
+	/* check free space here */
+	return g_dcf_hdl2;
+#else
+	return g_dcf_hdl;
+#endif
+}
+
 INT32 PhotoFast_WriteFile(UINT32 Addr, UINT32 Size, UINT32 Fmt, UINT32 uiPathId, char* Path)
 {
 	FST_FILE fp;
 	INT32    rt;
 	UINT32   Length;
 	CHAR     FilePath[NMC_TOTALFILEPATH_MAX_LEN];
-
-#if	FS_MULTI_STRG_FUNC
-	CHAR     FilePath2[NMC_TOTALFILEPATH_MAX_LEN];
-#endif
-
 	UINT32   fileType;
 	UINT32   open_flag;
-	UINT32 nextFolderID = 0, nextFileID = 0;
+	UINT32   nextFolderID = 0, nextFileID = 0;
+	DCF_HANDLE handle = PhotoFast_Get_DCF_Handle(); /* handle determines which storage would be written */
 
 	if(Path == NULL){
-        if (DCF_GetDBInfo(DCF_INFO_IS_9999)) {
+        if (DCF_GetDBInfoEx(handle, DCF_INFO_IS_9999)) {
             DBG_ERR("Exceed max dcf file!\r\n");
             return FST_STA_NOFREE_SPACE;
         }
@@ -908,7 +914,7 @@ INT32 PhotoFast_WriteFile(UINT32 Addr, UINT32 Size, UINT32 Fmt, UINT32 uiPathId,
             else{
                 fileType = DCF_FILE_TYPE_JPG;
             }
-            DCF_GetNextID(&nextFolderID,&nextFileID);
+            DCF_GetNextIDEx(handle, &nextFolderID,&nextFileID);
             if(DrvGPIO_GetPhotoMovieModeFromMonitor() == DX_HUNTING_MODE_MOVIE2)
             {
                 nextFolderID = Movie2_nextFolderID;
@@ -933,8 +939,8 @@ INT32 PhotoFast_WriteFile(UINT32 Addr, UINT32 Size, UINT32 Fmt, UINT32 uiPathId,
                     }
                 }
             }
-            DCF_MakeObjPath(nextFolderID, nextFileID, fileType, FilePath);
-            DCF_AddDBfile(FilePath);
+            DCF_MakeObjPathEx(handle, nextFolderID, nextFileID, fileType, FilePath);
+            DCF_AddDBfileEx(handle, FilePath);
             DBG_DUMP("%s added to DCF\r\n", FilePath);
             }
 
@@ -1004,30 +1010,6 @@ INT32 PhotoFast_WriteFile(UINT32 Addr, UINT32 Size, UINT32 Fmt, UINT32 uiPathId,
 		DBG_ERR("FileSys_OpenFile fail\r\n");
 		rt =FST_STA_ERROR;
 	}
-
-#if	FS_MULTI_STRG_FUNC
-
-	DBG_WRN("write %s\n", FilePath2);
-	if ((fp = FileSys_OpenFile(FilePath2, open_flag)) != NULL) {
-		Length = Size;
-
-		rt = FileSys_WriteFile(fp, (UINT8 *)Addr, &Length, 0, NULL);
-        FileSys_FlushFile(fp);
-		FileSys_CloseFile(fp);
-		if (rt == FST_STA_OK) {
-		// DCF_AddDBfile(FilePath);
-		// DBG_DUMP("%s added to DCF\r\n", FilePath);
-		} else {
-			DBG_ERR("Addr=0x%x,Size=0x%x,Fmt=%d\r\n", Addr, Size, Fmt);
-		}
-	}else{
-		DBG_ERR("FileSys_OpenFile fail\r\n");
-		rt =FST_STA_ERROR;
-	}
-
-#endif
-
-
 	return rt;
 }
 
diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.h b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.h
index 3aae8e853..280e32b9c 100755
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.h
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/PhotoFast/PhotoFast.h
@@ -4,6 +4,7 @@
 #include "hd_common.h"
 #include "UIAppPhoto.h"
 #include <vf_gfx.h>
+#include "DCF.h"
 
 #define FLGPHOTOFAST_CHGMODE       0x00000001
 #define FLGPHOTOFAST_SHUTDOWN      0x00000002
@@ -62,5 +63,6 @@ extern BOOL PhotoFast_SetTriggerFrmCnt(UINT32 cnt); /* trigger vcap frame count
 UINT32 PhotoFast_GetTriggerFrmCnt(VOID);
 extern UINT32 PhotoFast_GetTickBufSize(void);
 ER PhotoFast_Movie_Init(void);
+DCF_HANDLE PhotoFast_Get_DCF_Handle(void);
 
 #endif //_UIAPP_PHOTO_H_
diff --git a/rtos/code/application/source/cardv/SrcCode/UIApp/UsbDisk/UIAppUsbDisk_Exe.c b/rtos/code/application/source/cardv/SrcCode/UIApp/UsbDisk/UIAppUsbDisk_Exe.c
index a6e618cb0..95c421c6d 100755
--- a/rtos/code/application/source/cardv/SrcCode/UIApp/UsbDisk/UIAppUsbDisk_Exe.c
+++ b/rtos/code/application/source/cardv/SrcCode/UIApp/UsbDisk/UIAppUsbDisk_Exe.c
@@ -153,10 +153,10 @@ ER AppInit_ModeUSBMSDC(void)
 	MSDCInfo.msdc_vendor_cb = NULL;
 	//#NT#2016/12/20#Niven Cho -begin
 	//#NT#MULTI_DRIVE
-// #if (FS_MULTI_STRG_FUNC == ENABLE)
-// 	char *pDxName2 = NULL;
-// 	DX_HANDLE pStrgDev2 = 0;
-// #endif
+//#if (FS_MULTI_STRG_FUNC == ENABLE)
+//	char *pDxName2 = NULL;
+//	DX_HANDLE pStrgDev2 = 0;
+//#endif
 
 	pStrgDev = Dx_GetObject(DX_CLASS_STORAGE_EXT | FS_DX_TYPE_DRIVE_A);