diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index eee034cd..0137743c 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -2946,3 +2946,8 @@ Oliver Schinagl <oliver@schinagl.nl>
 Andrey Pridvorov <ua0lnj@bk.ru>
  for reporting a problem with detecting frames in MPEG 4 video, and pointing towards
  a better way of doing it
+
+Jens Vogel <jens.vogel@akjv.de>
+ for suggesting to make cPatPmtParser::ParsePmt() also recognize stream type 0x81
+ as "AC3", so that recordings that have been converted from the old PES format to
+ TS can be played
diff --git a/HISTORY b/HISTORY
index ea1e03f7..028fa5ac 100644
--- a/HISTORY
+++ b/HISTORY
@@ -7235,7 +7235,7 @@ Video Disk Recorder Revision History
   function in order to make use of this new feature. See, for instance, the function
   cSkinClassicDisplayMenu::SetButtons() in skinclassic.c for details.
 
-2012-09-18: Version 1.7.31
+2012-09-19: Version 1.7.31
 
 - If regenerating an index file fails and no data is written to the file, VDR now
   reports this error and removes the empty index file.
@@ -7246,3 +7246,6 @@ Video Disk Recorder Revision History
 - The script given to VDR with the '-r' option is now also called whenever a
   recording is deleted (thanks to Alexander Wenzel).
 - Improved detecting frames in MPEG 4 video (reported by Andrey Pridvorov).
+- cPatPmtParser::ParsePmt() now also recognizes stream type 0x81 as "AC3", so that
+  recordings that have been converted from the old PES format to TS can be played
+  (suggested by Jens Vogel).
diff --git a/remux.c b/remux.c
index 710a091f..6450da40 100644
--- a/remux.c
+++ b/remux.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: remux.c 2.66 2012/09/18 09:11:24 kls Exp $
+ * $Id: remux.c 2.67 2012/09/19 10:28:42 kls Exp $
  */
 
 #include "remux.h"
@@ -622,6 +622,34 @@ void cPatPmtParser::ParsePmt(const uchar *Data, int Length)
                          }
                       }
                       break;
+           case 0x81: // STREAMTYPE_USER_PRIVATE
+                      {
+                      dbgpatpmt(" AC3");
+                      char lang[MAXLANGCODE1] = { 0 };
+                      SI::Descriptor *d;
+                      for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
+                          switch (d->getDescriptorTag()) {
+                            case SI::ISO639LanguageDescriptorTag: {
+                                 SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
+                                 dbgpatpmt(" '%s'", ld->languageCode);
+                                 strn0cpy(lang, I18nNormalizeLanguageCode(ld->languageCode), MAXLANGCODE1);
+                                 }
+                                 break;
+                            default: ;
+                            }
+                         delete d;
+                         }
+                      if (NumDpids < MAXDPIDS) {
+                         dpids[NumDpids] = stream.getPid();
+                         dtypes[NumDpids] = SI::AC3DescriptorTag;
+                         strn0cpy(dlangs[NumDpids], lang, sizeof(dlangs[NumDpids]));
+                         if (updatePrimaryDevice && Setup.UseDolbyDigital)
+                            cDevice::PrimaryDevice()->SetAvailableTrack(ttDolby, NumDpids, stream.getPid(), lang);
+                         NumDpids++;
+                         dpids[NumDpids]= 0;
+                         }
+                      }
+                      break;
            default: ;
            }
          dbgpatpmt("\n");