Index: apps/recorder/recording.c
===================================================================
--- apps/recorder/recording.c	(revision 21649)
+++ apps/recorder/recording.c	(working copy)
@@ -56,7 +56,6 @@
 #include "menu.h"
 #include "sound_menu.h"
 #include "timefuncs.h"
-#include "debug.h"
 #include "misc.h"
 #include "tree.h"
 #include "string.h"
@@ -370,6 +369,7 @@
          global_settings.rec_mic_gain += factor;
 #endif
     }
+    settings_save();
 }
 
 /* 
@@ -990,6 +990,7 @@
     int audio_stat = 0;         /* status of the audio system */
     int last_audio_stat = -1;   /* previous status so we can act on changes */
     struct viewport vp_list[NB_SCREENS], vp_top[NB_SCREENS]; /* the viewports */
+    bool settings_changed = false;
 
 #if CONFIG_CODEC == SWCODEC
     int warning_counter = 0;
@@ -1343,41 +1344,59 @@
                         {
                             if(global_settings.rec_mic_gain <
                                sound_max(SOUND_MIC_GAIN))
+                            {
                                 global_settings.rec_mic_gain++;
+                                settings_changed = true;
+                            }
                         }
                         else
 #endif /* MIC */
                         {
                             if(global_settings.rec_left_gain <
                                sound_max(SOUND_LEFT_GAIN))
+                            {
                                 global_settings.rec_left_gain++;
+                                settings_changed = true;
+                            }
                             if(global_settings.rec_right_gain <
                                sound_max(SOUND_RIGHT_GAIN))
+                            {
                                 global_settings.rec_right_gain++;
+                                settings_changed = true;
+                            }
                         }
                         break;
                     case ITEM_GAIN_L:
                         if(global_settings.rec_left_gain <
                            sound_max(SOUND_LEFT_GAIN))
+                        {
                             global_settings.rec_left_gain++;
+                            settings_changed = true;
+                        }
                         break;
                     case ITEM_GAIN_R:
                         if(global_settings.rec_right_gain <
                            sound_max(SOUND_RIGHT_GAIN))
+                        {
                             global_settings.rec_right_gain++;
+                            settings_changed = true;
+                        }
                         break;
 #ifdef HAVE_AGC
                     case ITEM_AGC_MODE:
                         agc_preset = MIN(agc_preset + 1, AGC_MODE_SIZE);
                         agc_enable = (agc_preset != 0);
 #ifdef HAVE_MIC_REC
-                        if (global_settings.rec_source == AUDIO_SRC_MIC) {
+                        if (global_settings.rec_source == AUDIO_SRC_MIC) 
+                        {
                             global_settings.rec_agc_preset_mic = agc_preset;
+                            settings_changed = true;
                             agc_maxgain = global_settings.rec_agc_maxgain_mic;
                         } else
 #endif /* MIC */
                         {
                             global_settings.rec_agc_preset_line = agc_preset;
+                            settings_changed = true;
                             agc_maxgain = global_settings.rec_agc_maxgain_line;
                         }
                         break;
@@ -1388,6 +1407,7 @@
                             agc_maxgain = MIN(agc_maxgain + 1,
                                               sound_max(SOUND_MIC_GAIN));
                             global_settings.rec_agc_maxgain_mic = agc_maxgain;
+                            settings_changed = true;
                         }
                         else
 #endif /* MIC */
@@ -1395,6 +1415,7 @@
                             agc_maxgain = MIN(agc_maxgain + 1,
                                               sound_max(SOUND_LEFT_GAIN));
                             global_settings.rec_agc_maxgain_line = agc_maxgain;
+                            settings_changed = true;
                         }
                         break;
 #endif /* HAVE_AGC */
@@ -1416,28 +1437,43 @@
                         {
                             if(global_settings.rec_mic_gain >
                                sound_min(SOUND_MIC_GAIN))
+                            {
                                 global_settings.rec_mic_gain--;
+                                settings_changed = true;
+                            }
                         }
                         else
 #endif /* MIC */
                         {
                             if(global_settings.rec_left_gain >
                                sound_min(SOUND_LEFT_GAIN))
+                            {
                                 global_settings.rec_left_gain--;
+                                settings_changed = true;
+                            }
                             if(global_settings.rec_right_gain >
                                sound_min(SOUND_RIGHT_GAIN))
+                            {
                                 global_settings.rec_right_gain--;
+                                settings_changed = true;
+                            }
                         }
                         break;
                     case ITEM_GAIN_L:
                         if(global_settings.rec_left_gain >
                            sound_min(SOUND_LEFT_GAIN))
+                        {
                             global_settings.rec_left_gain--;
+                            settings_changed = true;
+                        }
                         break;
                     case ITEM_GAIN_R:
                         if(global_settings.rec_right_gain >
                            sound_min(SOUND_RIGHT_GAIN))
+                        {
                             global_settings.rec_right_gain--;
+                            settings_changed = true;
+                        }
                         break;
 #ifdef HAVE_AGC
                     case ITEM_AGC_MODE:
@@ -1446,11 +1482,13 @@
 #ifdef HAVE_MIC_REC
                         if (global_settings.rec_source == AUDIO_SRC_MIC) {
                             global_settings.rec_agc_preset_mic = agc_preset;
+                            settings_changed = true;
                             agc_maxgain = global_settings.rec_agc_maxgain_mic;
                         } else
 #endif /* MIC */
                         {
                             global_settings.rec_agc_preset_line = agc_preset;
+                            settings_changed = true;
                             agc_maxgain = global_settings.rec_agc_maxgain_line;
                         }
                         break;
@@ -1461,12 +1499,14 @@
                             agc_maxgain = MAX(agc_maxgain - 1,
                                               sound_min(SOUND_MIC_GAIN));
                             global_settings.rec_agc_maxgain_mic = agc_maxgain;
+                            settings_changed = true;
                         } else
 #endif /* MIC */
                         {
                             agc_maxgain = MAX(agc_maxgain - 1,
                                               sound_min(SOUND_LEFT_GAIN));
                             global_settings.rec_agc_maxgain_line = agc_maxgain;
+                            settings_changed = true;
                         }
                         break;
 #endif /* HAVE_AGC */
@@ -1940,7 +1980,8 @@
     ata_set_led_enabled(true);
 #endif
 
-    settings_save();
+    if(settings_changed)
+        settings_save();
 
     return (rec_status & RCSTAT_BEEN_IN_USB_MODE) != 0;
 } /* recording_screen */
@@ -1960,6 +2001,7 @@
 
     bool exit = false;
     bool used = false;
+    bool settings_changed = false;
     int w, h, i;
     char buf[32];
     int button;
@@ -2038,6 +2080,7 @@
                 global_settings.rec_quality++;
                 if(global_settings.rec_quality > 7)
                     global_settings.rec_quality = 0;
+                settings_changed = true;
                 used = true;
                 break;
 
@@ -2046,6 +2089,7 @@
                 global_settings.rec_frequency++;
                 if(global_settings.rec_frequency > 5)
                     global_settings.rec_frequency = 0;
+                settings_changed = true;
                 used = true;
                 break;
 
@@ -2054,6 +2098,7 @@
                 global_settings.rec_channels++;
                 if(global_settings.rec_channels > 1)
                     global_settings.rec_channels = 0;
+                settings_changed = true;
                 used = true;
                 break;
 
@@ -2079,7 +2124,9 @@
 
     set_gain();
 
-    settings_save();
+    if(settings_changed)
+        settings_save();
+
     FOR_NB_SCREENS(i)
         screens[i].setfont(FONT_UI);
 
@@ -2090,6 +2137,7 @@
 {
     bool exit = false;
     bool used = false;
+    bool settings_changed = false;
     int w, h, i;
     int button;
     char *src_str[] =
@@ -2151,6 +2199,7 @@
                 global_settings.rec_source++;
                 if(global_settings.rec_source > AUDIO_SRC_MAX)
                     global_settings.rec_source = 0;
+                settings_changed = true;
                 used = true;
                 break;
 
@@ -2176,7 +2225,8 @@
 
     set_gain();
 
-    settings_save();
+    if(settings_changed)
+        settings_save();
     FOR_NB_SCREENS(i)
         screens[i].setfont(FONT_UI);