diff -urN xwave-0.7-orig/src/edit.c xwave-0.7/src/edit.c
--- xwave-0.7-orig/src/edit.c	2006-05-21 15:04:19 +0900
+++ xwave-0.7/src/edit.c	2009-12-28 16:56:36 +0900
@@ -1127,7 +1127,7 @@
 	    wd->name);
     
     /* after cut the samples fitting in memory ? */
-    if ((wd->inmem)||(length<md->maxmem)) {
+    if ((wd->inmem)||(length<=md->maxmem)) {
 	char* newbuf;
 	if ((newbuf=(char*) malloc(length))==NULL) {
 	    watch_cursor(False);
diff -urN xwave-0.7-orig/src/fileop.c xwave-0.7/src/fileop.c
--- xwave-0.7-orig/src/fileop.c	1996-11-08 02:26:01 +0900
+++ xwave-0.7/src/fileop.c	2009-12-28 16:56:26 +0900
@@ -107,7 +107,7 @@
     
     watch_cursor(True);
     
-    if (af.length<MD->maxmem) {
+    if (af.length<=MD->maxmem) {
 	if ((wd->buffer = (byte *) malloc(af.length)) == NULL) {
 	    watch_cursor(False);
 	    warn_popup(MD->mw->form,MD->mw->messages);
@@ -207,7 +207,7 @@
     wd->markbeg=0;
     wd->marklength=0;
     
-    if (wd->length<MD->maxmem) {
+    if (wd->length<=MD->maxmem) {
 	if ((wd->buffer = (byte *) malloc(wd->length)) == NULL) {
 	    XtFree((char*) wd);
 	    af_close(af);