Index: rockbox/apps/metadata/flac.c
===================================================================
--- rockbox/apps/metadata/flac.c	(revision 15082)
+++ rockbox/apps/metadata/flac.c	(working copy)
@@ -81,16 +81,23 @@
             /* totalsamples is a 36-bit field, but we assume <= 32 bits are used */
             totalsamples = get_long_be(&buf[14]);
 
+            if(totalsamples > 0)
+            {
             /* Calculate track length (in ms) and estimate the bitrate (in kbit/s) */
-            id3->length = ((int64_t) totalsamples * 1000) / id3->frequency;
-        
-            if (id3->length <= 0)
+                id3->length = ((int64_t) totalsamples * 1000) / id3->frequency;
+                id3->bitrate = (id3->filesize * 8) / id3->length;
+            } 
+            else if (totalsamples == 0)
             {
+                id3->length = 0;
+                id3->bitrate = 0;
+            }
+            else {
                 logf("flac length invalid!");
                 return false;
             }
 
-            id3->bitrate = (id3->filesize * 8) / id3->length;
+            
         } 
         else if ((buf[0] & 0x7f) == 4)  /* 4 is the VORBIS_COMMENT block */
         {