diff -Nraub mplayer.ori/libmpcodecs/ae_faac.c mplayer/libmpcodecs/ae_faac.c
--- mplayer.ori/libmpcodecs/ae_faac.c	2006-10-08 15:57:44.000000000 -0400
+++ mplayer/libmpcodecs/ae_faac.c	2006-10-12 23:43:25.000000000 -0400
@@ -97,6 +97,25 @@
 
 static int encode_faac(audio_encoder_t *encoder, uint8_t *dest, void *src, int len, int max_size)
 {
+        if (encoder->params.channels == 6 || encoder->params.channels == 5) {
+            //Codec wants: C L R  SL SR LFE
+            //We have:     L R SL SR C  LFE
+            int i;
+            uint16_t tmp16;
+            uint32_t tmp32;
+            for (i = 0; i < len; i += encoder->params.channels*divisor) {
+                if (divisor == 4)
+                    tmp32 = ((uint32_t*)(src+i))[4];
+                else
+                    tmp16 = ((uint16_t*)(src+i))[4];
+                memmove(src+i+divisor, src+i, 4*divisor);
+                if (divisor == 4)
+                    ((uint32_t*)(src+i))[0] = tmp32;
+                else
+                    ((uint16_t*)(src+i))[0] = tmp16;
+            }
+        }
+
 	// len is divided by the number of bytes per sample
 	enc_frame_size = faacEncEncode(faac,  (int32_t*) src,  len / divisor, dest, max_size);