diff --git a/code/application/source/sf_app/code/source/storeMng/sf_storeMng.c b/code/application/source/sf_app/code/source/storeMng/sf_storeMng.c
index 642ca2bbe..17effaf85 100644
--- a/code/application/source/sf_app/code/source/storeMng/sf_storeMng.c
+++ b/code/application/source/sf_app/code/source/storeMng/sf_storeMng.c
@@ -951,7 +951,7 @@ int sf_app_sd_loop(void)
             }
         }
 
-        sprintf(cFileTmp,"%s%s/W%c%03d%04d.JPG", SF_EMMC_ROOT, SF_DCF_THM_DIR_NAME, SF_EMMC_DCF_HANDLE, nDirKey, nFileKey);
+        sprintf(cFileTmp,"%s%s/W%c%02d%04d.JPG", SF_EMMC_ROOT, SF_DCF_THM_DIR_NAME, SF_EMMC_DCF_HANDLE, nDirKey%100, nFileKey);
         //MLOGD("Thumb Filename:%s\n", cFileTmp);		
         if(access(cFileTmp,R_OK) == 0)
         {
@@ -959,7 +959,7 @@ int sf_app_sd_loop(void)
             remove(cFileTmp);
         }
 
-        sprintf(cFileTmp,"%s%s/S%c%03d%04d.JPG", SF_EMMC_ROOT, SF_DCF_THM_DIR_NAME, SF_EMMC_DCF_HANDLE, nDirKey, nFileKey);
+        sprintf(cFileTmp,"%s%s/S%c%02d%04d.JPG", SF_EMMC_ROOT, SF_DCF_THM_DIR_NAME, SF_EMMC_DCF_HANDLE, nDirKey%100, nFileKey);
         //MLOGD("Thumb Filename:%s\n", cFileTmp);		
         if(access(cFileTmp,R_OK) == 0)
         {