diff --git a/README.md b/README.md
index 82b6fdb..af0782d 100644
--- a/README.md
+++ b/README.md
@@ -21,16 +21,16 @@ You need a Vita running HENkaku to be able to use CardUnlock. Install the vpk in
 ## How to use it
 
 * start Vita without the card inserted
-* run HENkaku and  start CardUnlock
-* insert card, answer "no" to "do you want to reboot now" message
-* press X to remove id.dat
+* run HENkaku and start CardUnlock
+* insert the memory card, answer "no" to the "do you want to reboot now" message from the system
+* press X to rename id.dat
 * press X to reboot or O to exit (after pressing O you can remove the card to insert in another device)
-* answer "no" to questions about copying content to the card
+* answer "no" to questions about copying content to the card from the system
 * you now have access to the card
 
 ## How does it work?
 
-The Vita looks at the file id.dat in the root of the card to see if it's attached to another user/version when mounting the card. Removing this file makes the Vita think this is a new card allowing you to mount it. The problem is that you need to mount the card to remove the file and mounting ux0: causes the Vita to check the file before you can delete it. CardUnlock gets around this by mounting the card as xmc0: which is the actual mount point for external cards. The Vita doesn't check for id.dat when you mount xmc0: so we can mount the device and delete id.dat.
+The Vita looks at the file id.dat in the root of the card to see if it's attached to another user/version when mounting the card. Removing/renaming this file makes the Vita think this is a new card allowing you to mount it. The problem is that you need to mount the card to access the file and mounting ux0: causes the Vita to check the file before you can delete it. CardUnlock gets around this by mounting the card as xmc0: which is the actual mount point for external cards. The Vita doesn't check for id.dat when you mount xmc0: so we can mount the device and rename id.dat.
 
 ## Credits
 
diff --git a/main.c b/main.c
index fc86a5b..47d3fd8 100644
--- a/main.c
+++ b/main.c
@@ -34,14 +34,22 @@ int main(int argc, char *argv[])
 	psvDebugScreenInit();
 
 	psvDebugScreenSetFgColor(COLOR_WHITE);
-	printf("CardUnlock by cnsldv\n");
-	printf("====================\n");
+	printf("CardUnlock v1.1 by cnsldv (Contributions By Hexxellor)\n");
+	printf("======================================================\n");
+	printf("NOTE: This application will attempt to rename the\n");
+	printf("id.dat file on your memory card to id.bak. This will\n");
+	printf("allow you to preserve the original in case you want to\n");
+	printf("retrieve any information from it.\n");
+	printf("======================================================\n");
 	printf("\n");
 	psvDebugScreenSetFgColor(COLOR_RED);
-	printf("WARNING: use of this program is at your own risk!\n");
+	printf("WARNING: Use of this program is at your own risk!\n");
+	printf("         If a backup file (id.bak) exists already\n");
+	printf("         it will be removed so backup the file\n");
+	printf("         if you need to keep it!\n");
 	psvDebugScreenSetFgColor(COLOR_WHITE);
 	printf("\n");
-	
+
 	printf("Insert card now, select \"No\" when asked to reboot\n");
 
 	printf("Once card is inserted press X to continue\n");
@@ -58,15 +66,32 @@ int main(int argc, char *argv[])
 		return 0;
 	}
 
-	printf("Removing id.dat\n");
+	// Remove the old id.bak file if it exists
+	printf("Checking for existing id.bak file...\n");
+	fd = sceIoOpen("xmc0:id.bak", SCE_O_RDONLY, 0);
+	if (fd >= 0) {
+		sceIoClose(fd);
+		printf("Removing old id.bak file\n");
+		ret = sceIoRemove("xmc0:id.bak");
+		if (ret != 0) {
+			psvDebugScreenSetFgColor(COLOR_RED);
+			psvDebugScreenPrintf("Unable to remove id.bak err=0x%08X\n", ret);
+			psvDebugScreenSetFgColor(COLOR_WHITE);
+		}
+	}
+
+	// Rename the id.dat file to id.bak so we can retain the information in it.
+	// NOTE: Technically if the previous attempt to remove an existing id.bak fails
+	//       proceeding with this is sort of stupid. *shrug* Lots of checking could be
+	//       added. Don't care. :)
+	printf("Renaming current id.dat to id.bak\n");
 	fd = sceIoOpen("xmc0:id.dat", SCE_O_RDONLY, 0);
 	if (fd >= 0) {
 		sceIoClose(fd);
-	
-		ret = sceIoRemove("xmc0:id.dat");
+		ret = sceIoRename("xmc0:id.dat", "xmc0:id.bak");
 		if (ret != 0) {
 			psvDebugScreenSetFgColor(COLOR_RED);
-			psvDebugScreenPrintf("Unable to remove id.dat err=0x%08X\n", ret);
+			psvDebugScreenPrintf("Unable to rename id.dat err=0x%08X\n", ret);
 			psvDebugScreenSetFgColor(COLOR_WHITE);
 		}
 	}
@@ -113,4 +138,3 @@ unsigned int wait_keys(unsigned int key_mask)
 		sceKernelDelayThreadCB(200 * 1000);
 	}
 }
-