diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index cca09d251..1f524aa9f 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -4,6 +4,7 @@ D2X-Rebirth Changelog
 --------
 main/endlevel.c, main/gameseq.c, main/mission.c, main/mission.h, main/titles.c, main/titles.h: In Endlevel sequence, re-align big explosion to draw in front of exit model, relative to viewer; Re-organized tex files for Briefings and Endings and created more general code to play them; Re-aligned Dravis' head
 main/automap.c, main/escort.c, main/gamecntl.c, main/kconfig.c, main/net_ipx.c, main/net_udp.c, main/newmenu.c, main/scores.c: Make all windows except game and editor use EVENT_KEY_COMMAND, returning 1 if handled; pass NULL instead of userdata for the PCX filename, for newmenu_do1
+include/cfile.h, include/physfsx.h, main/piggy.c: Ignore case-sensitivity for cfile_init/close/size and PHYSFSX_openReadBuffered; Give error message if default sound file cannot be opened so user knows what's going on
 
 20100325
 --------
diff --git a/include/cfile.h b/include/cfile.h
index 7ccf6dab5..e12f2c5b5 100644
--- a/include/cfile.h
+++ b/include/cfile.h
@@ -54,16 +54,19 @@ COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
 //Specify the name of the hogfile.  Returns 1 if hogfile found & had files
 static inline int cfile_init(char *hogname, int add_to_end)
 {
-	char pathname[PATH_MAX];
+	char hogname2[PATH_MAX], pathname[PATH_MAX];
 
-	if (!PHYSFSX_getRealPath(hogname, pathname))
+	snprintf(hogname2, strlen(hogname)+1, hogname);
+	PHYSFSEXT_locateCorrectCase(hogname2);
+
+	if (!PHYSFSX_getRealPath(hogname2, pathname))
 		return 0;
 
 	if (!PHYSFS_addToSearchPath(pathname, add_to_end))
 	{	// try the 'Data' directory for old Mac Descent directories compatibility
 		char std_path[PATH_MAX] = "Data/";
 
-		strncat(std_path, hogname, PATH_MAX - 1 - strlen(std_path));
+		strncat(std_path, hogname2, PATH_MAX - 1 - strlen(std_path));
 		std_path[PATH_MAX - 1] = 0;
 
 		if (!PHYSFSX_getRealPath(std_path, pathname))
@@ -77,16 +80,19 @@ static inline int cfile_init(char *hogname, int add_to_end)
 
 static inline int cfile_close(char *hogname)
 {
-	char pathname[PATH_MAX];
+	char hogname2[PATH_MAX], pathname[PATH_MAX];
 
-	if (!PHYSFSX_getRealPath(hogname, pathname))
+	snprintf(hogname2, strlen(hogname)+1, hogname);
+	PHYSFSEXT_locateCorrectCase(hogname2);
+
+	if (!PHYSFSX_getRealPath(hogname2, pathname))
 		return 0;
 
 	if (!PHYSFS_removeFromSearchPath(pathname))
 	{
 		char std_path[PATH_MAX] = "Data/";
 		
-		strncat(std_path, hogname, PATH_MAX - 1 - strlen(std_path));
+		strncat(std_path, hogname2, PATH_MAX - 1 - strlen(std_path));
 		std_path[PATH_MAX - 1] = 0;
 		
 		if (!PHYSFSX_getRealPath(std_path, pathname))
@@ -102,14 +108,18 @@ static inline int cfile_close(char *hogname)
 static inline int cfile_size(char *hogname)
 {
 	PHYSFS_file *fp;
+	char hogname2[PATH_MAX];
 	int size;
 
-	fp = PHYSFS_openRead(hogname);
+	snprintf(hogname2, strlen(hogname)+1, hogname);
+	PHYSFSEXT_locateCorrectCase(hogname2);
+
+	fp = PHYSFS_openRead(hogname2);
 	if (fp == NULL)
 	{
 		char std_path[PATH_MAX] = "Data/";
 		
-		strncat(std_path, hogname, PATH_MAX - 1 - strlen(std_path));
+		strncat(std_path, hogname2, PATH_MAX - 1 - strlen(std_path));
 		std_path[PATH_MAX - 1] = 0;
 		
 		if (!(fp = PHYSFS_openRead(std_path)))
diff --git a/include/physfsx.h b/include/physfsx.h
index dd4ce8e34..447edbca3 100644
--- a/include/physfsx.h
+++ b/include/physfsx.h
@@ -369,6 +369,7 @@ static inline PHYSFS_file *PHYSFSX_openReadBuffered(char *filename)
 {
 	PHYSFS_file *fp;
 	PHYSFS_uint64 bufSize;
+	char filename2[PATH_MAX];
 
 	if (filename[0] == '\x01')
 	{
@@ -376,9 +377,10 @@ static inline PHYSFS_file *PHYSFSX_openReadBuffered(char *filename)
 		filename++;
 	}
 
-	PHYSFSEXT_locateCorrectCase(filename);
+	snprintf(filename2, strlen(filename)+1, filename);
+	PHYSFSEXT_locateCorrectCase(filename2);
 
-	fp = PHYSFS_openRead(filename);
+	fp = PHYSFS_openRead(filename2);
 	if (!fp)
 		return NULL;
 
diff --git a/main/piggy.c b/main/piggy.c
index 7d365a279..5df67879c 100644
--- a/main/piggy.c
+++ b/main/piggy.c
@@ -949,7 +949,11 @@ int properties_init(void)
 	snd_ok = ham_ok = read_hamfile();
 
 	if (Piggy_hamfile_version >= 3)
+	{
 		snd_ok = read_sndfile();
+		if (!snd_ok)
+			Error("Cannot open sound file: %s\n", DEFAULT_SNDFILE);
+	}
 
 	return (ham_ok && snd_ok);               //read ok
 }