diff --git a/Mixer/Project.C b/Mixer/Project.C
index e58e5e9..8836803 100644
--- a/Mixer/Project.C
+++ b/Mixer/Project.C
@@ -117,7 +117,7 @@ Project::write_info ( void )
 }
 
 bool
-Project::read_info ( int *version, char **creation_date )
+Project::read_info ( int *version, char **creation_date, char **created_by )
 {
     FILE *fp;
 
@@ -129,6 +129,7 @@ Project::read_info ( int *version, char **creation_date )
 
     *version = 0;
     *creation_date = 0;
+    *created_by = 0;
 
     char *name, *value;
 
@@ -140,6 +141,8 @@ Project::read_info ( int *version, char **creation_date )
             *version = atoi( value );
         else if ( ! strcmp( name, "created on" ) )
             *creation_date = strdup( value );
+        else if ( ! strcmp( name, "created by" ) )
+            *created_by = strdup( value );
 
         free( name );
         free( value );
@@ -237,8 +240,12 @@ Project::open ( const char *name )
 
     int version;
     char *creation_date;
+    char *created_by;
 
-    if ( ! read_info( &version, &creation_date ) )
+    if ( ! read_info( &version, &creation_date, &created_by ) )
+        return E_INVALID;
+
+    if ( strncmp( created_by, APP_TITLE, strlen( APP_TITLE ) ) )
         return E_INVALID;
 
     if ( version != PROJECT_VERSION )
diff --git a/Mixer/Project.H b/Mixer/Project.H
index 2ea2b24..2fed316 100644
--- a/Mixer/Project.H
+++ b/Mixer/Project.H
@@ -32,7 +32,7 @@ class Project
     static char _created_on[40];
 
     static bool write_info ( void );
-    static bool read_info ( int *version, char **creation_date );
+    static bool read_info ( int *version, char **creation_date, char **created_by );
     static void set_name ( const char *name );
     static const char *_errstr[];
 
diff --git a/Timeline/Project.C b/Timeline/Project.C
index d2f5b7c..72e5ea5 100644
--- a/Timeline/Project.C
+++ b/Timeline/Project.C
@@ -124,7 +124,7 @@ Project::write_info ( void )
 }
 
 bool
-Project::read_info ( int *version, nframes_t *sample_rate, char **creation_date )
+Project::read_info ( int *version, nframes_t *sample_rate, char **creation_date, char **created_by )
 {
     FILE *fp;
 
@@ -137,6 +137,7 @@ Project::read_info ( int *version, nframes_t *sample_rate, char **creation_date
     *version = 0;
     *sample_rate = 0;
     *creation_date = 0;
+    *created_by = 0;
 
     char *name, *value;
 
@@ -150,6 +151,8 @@ Project::read_info ( int *version, nframes_t *sample_rate, char **creation_date
             *version = atoi( value );
         else if ( ! strcmp( name, "created on" ) )
             *creation_date = strdup( value );
+        else if ( ! strcmp( name, "created by" ) )
+            *created_by = strdup( value );
 
         free( name );
         free( value );
@@ -248,8 +251,12 @@ Project::open ( const char *name )
     int version;
     nframes_t rate;
     char *creation_date;
+    char *created_by;
 
-    if ( ! read_info( &version, &rate, &creation_date ) )
+    if ( ! read_info( &version, &rate, &creation_date, &created_by ) )
+        return E_INVALID;
+
+    if ( strncmp( created_by, APP_TITLE, strlen( APP_TITLE ) ) )
         return E_INVALID;
 
     if ( version != PROJECT_VERSION )
diff --git a/Timeline/Project.H b/Timeline/Project.H
index da14b67..b3860db 100644
--- a/Timeline/Project.H
+++ b/Timeline/Project.H
@@ -32,7 +32,7 @@ class Project
     static char _created_on[40];
 
     static bool write_info ( void );
-    static bool read_info ( int *version, nframes_t *sample_rate, char **creation_date );
+    static bool read_info ( int *version, nframes_t *sample_rate, char **creation_date, char **created_by );
     static void set_name ( const char *name );
     static const char *_errstr[];