diff --git a/libs/ardour/diskstream.cc b/libs/ardour/diskstream.cc
index 3d98dd9564..c96f40b1c4 100644
--- a/libs/ardour/diskstream.cc
+++ b/libs/ardour/diskstream.cc
@@ -803,17 +803,21 @@ Diskstream::set_own_replication_path (const std::string& path)
 framecnt_t
 Diskstream::default_disk_read_chunk_frames()
 {
+/*
 #ifdef PLATFORM_WINDOWS
 	return (2 * 1048576) / sizeof (Sample);
 #elif defined __APPLE__
 	return (4 * 1048576) / sizeof (Sample);
 #else
 	return 65536;
-#endif
+#endif*/
+//GZ to Paul Davis FIX-ME restored old value which used to work with current ring buffer capacity
+    return 262144;
 }	
 
 framecnt_t
 Diskstream::default_disk_write_chunk_frames ()
 {
-	return 65536;
+//GZ to Paul Davis FIX-ME restored old value which used to work with current ring buffer capacity
+	return 262144;
 }