diff --git a/EDMarketConnector.py b/EDMarketConnector.py
index e87ab23f..c8497523 100755
--- a/EDMarketConnector.py
+++ b/EDMarketConnector.py
@@ -394,6 +394,12 @@ class AppWindow:
         if not monitor.cmdr or not monitor.mode or monitor.is_beta:
             return	# In CQC or Beta - do nothing
 
+        if auto_update and monitor.carrying_rares():
+            # https://github.com/Marginal/EDMarketConnector/issues/92
+            self.status['text'] = _("Didn't update: Carrying Rares")	# Status text displayed when auto-update is suppressed - https://github.com/Marginal/EDMarketConnector/issues/92
+            hotkeymgr.play_bad()
+            return
+
         if not retrying:
             if time() < self.holdofftime:	# Was invoked by key while in cooldown
                 self.status['text'] = ''
diff --git a/monitor.py b/monitor.py
index ee047992..bc144089 100644
--- a/monitor.py
+++ b/monitor.py
@@ -62,6 +62,36 @@ class EDLogs(FileSystemEventHandler):
 
     _POLL = 1		# Polling is cheap, so do it often
 
+    # Mostly taken from http://elite-dangerous.wikia.com/wiki/List_of_Rare_Commodities
+    RARES = set([
+        'cetiaepyornisegg', 'aganipperush', 'alacarakmoskinart', 'albinoquechuamammoth', 'altairianskin', 'alyabodilysoap',
+        'anduligafireworks', 'anynacoffee', 'aroucaconventualsweets', 'azcancriformula42', 'bluemilk',
+        'baltahsinevacuumkrill', 'bakedgreebles', 'bankiamphibiousleather', 'bastsnakegin', 'belalansrayleather',
+        'borasetanipathogenetics', 'burnhambiledistillate', 'cd75catcoffee', 'centaurimegagin', 'ceremonialheiketea',
+        'cetirabbits', 'chameleoncloth', 'chateaudeaegaeon', 'cherbonesbloodcrystals', 'chieridanimarinepaste',
+        'coquimspongiformvictuals', 'cromsilverfesh', 'crystallinespheres', 'damnacarapaces', 'deltaphoenicispalms',
+        'deuringastruffles', 'disomacorn', 'aerialedenapple', 'eleuthermals', 'eraninpearlwhisky', 'eshuumbrellas',
+        'esusekucaviar', 'ethgrezeteabuds', 'fujintea', 'galactictravelguide', 'geawendancedust', 'gerasiangueuzebeer',
+        'giantirukamasnails', 'giantverrix', 'gilyasignatureweapons', 'gomanyauponcoffee', 'haidneblackbrew',
+        'havasupaidreamcatcher', 'helvetitjpearls', 'hip10175bushmeat', 'hip118311swarm', 'hiporganophosphates',
+        'hip41181squid', 'holvaduellingblades', 'honestypills', 'hr7221wheat', 'indibourbon', 'jaquesquinentianstill',
+        'jaradharrepuzzlebox', 'jarouarice', 'jotunmookah', 'kachiriginleaches', 'kamitracigars', 'kamorinhistoricweapons',
+        'karetiicouture', 'karsukilocusts', 'kinagoinstruments', 'konggaale', 'korrokungpellets', 'lavianbrandy',
+        'alieneggs', 'leestianeviljuice', 'livehecateseaworms', 'ltthypersweet', 'lyraeweed', 'transgeniconionhead',
+        'masterchefs', 'mechucoshightea', 'medbstarlube', 'mokojingbeastfeast', 'momusbogspaniel', 'motronaexperiencejelly',
+        'mukusubiichitinos', 'mulachigiantfungus', 'neritusberries', 'ngadandarifireopals', 'ngunamodernantiques',
+        'njangarisaddles', 'noneuclidianexotanks', 'ochoengchillies', 'onionhead', 'onionheada', 'onionheadb', 'onionheadc',
+        'onionheadd', 'onionheade', 'onionheadderivatives', 'onionheadsamples', 'ophiuchiexinoartefacts',
+        'orrerianviciousbrew', 'pantaaprayersticks', 'pavoniseargrubs', 'personalgifts', 'rajukrustoves',
+        'rapabaosnakeskins', 'rusanioldsmokey', 'sanumameat', 'saxonwine', 'shanscharisorchid', 'soontillrelics',
+        'sothiscrystallinegold', 'tanmarktranquiltea', 'tarachtorspice', 'taurichimes', 'terramaterbloodbores',
+        'thehuttonmug', 'thrutiscream', 'tiegfriessynthsilk', 'tiolcewaste2pasteunits', 'toxandjivirocide', 'advert1',
+        'uszaiantreegrub', 'utgaroarmillenialeggs', 'uzumokulowgwings', 'vherculisbodyrub', 'vacuumkrill',
+        'vanayequirhinofur', 'vegaslimweed', 'vidavantianlace', 'lftvoidextractcoffee', 'voidworms', 'volkhabbeedrones',
+        'watersofshintara', 'wheemetewheatcakes', 'witchhaulkobebeef', 'wolf1301fesh', 'wulpahyperboresystems',
+        'wuthielokufroth', 'xihecompanions', 'yasokondileaf', 'zeesszeantglue', 'buckyballbeermats',
+    ])
+
     def __init__(self):
         FileSystemEventHandler.__init__(self)	# futureproofing - not need for current version of watchdog
         self.root = None
@@ -399,6 +429,12 @@ class EDLogs(FileSystemEventHandler):
                 self.event_queue.append('{ "timestamp":"%s", "event":"StartUp" }' % strftime('%Y-%m-%dT%H:%M:%SZ', gmtime()))
             return entry
 
+    def carrying_rares(self):
+        for commodity in self.state['Cargo']:
+            if commodity in self.RARES:
+                return True
+        return False
+
 
 # singleton
 monitor = EDLogs()