diff --git a/ESP32CAM-ONVIF/sd_recorder.cpp b/ESP32CAM-ONVIF/sd_recorder.cpp
new file mode 100644
index 0000000..053a9a6
--- /dev/null
+++ b/ESP32CAM-ONVIF/sd_recorder.cpp
@@ -0,0 +1,21 @@
+#include "sd_recorder.h"
+#include "FS.h"
+#include "SD_MMC.h"
+
+void sd_recorder_init() {
+  if(!SD_MMC.begin()){
+    Serial.println("[WARN] SD Card Mount Failed");
+    return;
+  }
+  uint8_t cardType = SD_MMC.cardType();
+  if(cardType == CARD_NONE){
+    Serial.println("[WARN] No SD Card attached");
+    return;
+  }
+  Serial.println("[INFO] SD Card initialized");
+}
+
+void sd_recorder_loop() {
+  // Implement motion-triggered or continuous recording
+  // Write JPEG frames or MJPEG to SD card
+}