diff --git a/xorriso/parse_exec.c b/xorriso/parse_exec.c
index c80a697f..71ba7a35 100644
--- a/xorriso/parse_exec.c
+++ b/xorriso/parse_exec.c
@@ -2584,7 +2584,7 @@ malformed:;
          1900 + gmt->tm_year, gmt->tm_mon + 1, gmt->tm_mday,
          gmt->tm_hour, gmt->tm_min, gmt->tm_sec);
  xorriso->gpt_guid_mode= 2; /* Disk GUID from vol_uuid */
- strcpy(xorriso->all_file_dates, xorriso->vol_uuid);
+ strcpy(xorriso->all_file_dates, "set_to_mtime");
  sprintf(xorriso->info_text,
          "Environment variable SOURCE_DATE_EPOCH encountered with value %s",
          sec_text);
diff --git a/xorriso/xorriso.1 b/xorriso/xorriso.1
index aaf81048..bf5873c8 100644
--- a/xorriso/xorriso.1
+++ b/xorriso/xorriso.1
@@ -6008,8 +6008,9 @@ SOURCE_DATE_EPOCH belongs to the specs of reproducible\-builds.org.
 It is supposed to be either undefined or to contain a decimal number
 which tells the seconds since january 1st 1970. If it contains a number,
 then it is used as time value to set the default of
-\-volume date "uuid", \-volume_date "all_file_dates",
-and it sets \-boot_image "any" "gpt_disk_guid=" to "volume_date_uuid".
+\-volume date "uuid", sets \-boot_image "any" "gpt_disk_guid=" to
+"volume_date_uuid", and \-volume_date "all_file_dates" to "set_to_mtime",
+.br
 Startup files and program options can override the effect of SOURCE_DATE_EPOCH.
 .br
 .SS
diff --git a/xorriso/xorriso.info b/xorriso/xorriso.info
index 4df2c588..7741bd8a 100644
--- a/xorriso/xorriso.info
+++ b/xorriso/xorriso.info
@@ -5070,10 +5070,11 @@ HOME is used to find xorriso and mkisofs startup files.
 SOURCE_DATE_EPOCH belongs to the specs of reproducible-builds.org.  It
 is supposed to be either undefined or to contain a decimal number which
 tells the seconds since january 1st 1970.  If it contains a number, then
-it is used as time value to set the default of -volume date "uuid",
--volume_date "all_file_dates", and it sets -boot_image "any"
-"gpt_disk_guid=" to "volume_date_uuid".  Startup files and program
-options can override the effect of SOURCE_DATE_EPOCH.
+it is used as time value to set the default of -volume date "uuid", sets
+-boot_image "any" "gpt_disk_guid=" to "volume_date_uuid", and
+-volume_date "all_file_dates" to "set_to_mtime",
+Startup files and program options can override the effect of
+SOURCE_DATE_EPOCH.
 
 
 File: xorriso.info,  Node: Seealso,  Next: Bugreport,  Prev: Environ,  Up: Top
@@ -5760,10 +5761,10 @@ Node: ExRestore260903
 Node: ExRecovery261849
 Node: Files262421
 Node: Environ263755
-Node: Seealso264447
-Node: Bugreport265164
-Node: Legal265755
-Node: CommandIdx266767
-Node: ConceptIdx283955
+Node: Seealso264461
+Node: Bugreport265178
+Node: Legal265769
+Node: CommandIdx266781
+Node: ConceptIdx283969
 
 End Tag Table
diff --git a/xorriso/xorriso.texi b/xorriso/xorriso.texi
index a1751e47..3fbf806a 100644
--- a/xorriso/xorriso.texi
+++ b/xorriso/xorriso.texi
@@ -7014,8 +7014,9 @@ SOURCE_DATE_EPOCH belongs to the specs of reproducible-builds.org.
 It is supposed to be either undefined or to contain a decimal number
 which tells the seconds since january 1st 1970. If it contains a number,
 then it is used as time value to set the default of
--volume date "uuid", -volume_date "all_file_dates",
-and it sets -boot_image "any" "gpt_disk_guid=" to "volume_date_uuid".
+-volume date "uuid", sets -boot_image "any" "gpt_disk_guid=" to
+"volume_date_uuid", and -volume_date "all_file_dates" to "set_to_mtime",
+@*
 Startup files and program options can override the effect of SOURCE_DATE_EPOCH.
 @*
 @sp 1
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 9bd29b61..22a2c4b3 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2016.08.25.205059"
+#define Xorriso_timestamP "2016.09.12.091506"
diff --git a/xorriso/xorrisofs.1 b/xorriso/xorrisofs.1
index 94367b06..3c708b99 100644
--- a/xorriso/xorrisofs.1
+++ b/xorriso/xorrisofs.1
@@ -2036,8 +2036,11 @@ MKISOFSRC may be used to point the program to a mkisofs startup file.
 SOURCE_DATE_EPOCH belongs to the specs of reproducible\-builds.org.
 It is supposed to be either undefined or to contain a decimal number
 which tells the seconds since january 1st 1970. If it contains a number,
-then it is used as time value to set the default of \-\-modification\-date=,
-\-\-gpt_disk_guid, and \-\-set_all_file_dates.
+then it is used as time value to set the default of
+\-\-modification\-date=.
+\-\-gpt_disk_guid defaults to "modification\-date".
+The default of \-\-set_all_file_dates is then "set_to_mtime".
+.br
 Startup files and program options can override the effect of SOURCE_DATE_EPOCH.
 .SS 
 .SH SEE ALSO
diff --git a/xorriso/xorrisofs.info b/xorriso/xorrisofs.info
index 60cd986e..a75cd257 100644
--- a/xorriso/xorrisofs.info
+++ b/xorriso/xorrisofs.info
@@ -1787,9 +1787,11 @@ MKISOFSRC may be used to point the program to a mkisofs startup file.
 SOURCE_DATE_EPOCH belongs to the specs of reproducible-builds.org.  It
 is supposed to be either undefined or to contain a decimal number which
 tells the seconds since january 1st 1970.  If it contains a number, then
-it is used as time value to set the default of -modification-date=,
--gpt_disk_guid, and -set_all_file_dates.  Startup files and program
-options can override the effect of SOURCE_DATE_EPOCH.
+it is used as time value to set the default of --modification-date=.
+--gpt_disk_guid defaults to "modification-date".  The default of
+--set_all_file_dates is then "set_to_mtime".
+Startup files and program options can override the effect of
+SOURCE_DATE_EPOCH.
 
 
 File: xorrisofs.info,  Node: Seealso,  Next: Bugreport,  Prev: Environ,  Up: Top
@@ -2337,10 +2339,10 @@ Node: ExIncBckAcc74583
 Node: ExBootable76272
 Node: Files80454
 Node: Environ81549
-Node: Seealso82251
-Node: Bugreport82902
-Node: Legal83495
-Node: CommandIdx84392
-Node: ConceptIdx99830
+Node: Seealso82320
+Node: Bugreport82971
+Node: Legal83564
+Node: CommandIdx84461
+Node: ConceptIdx99899
 
 End Tag Table
diff --git a/xorriso/xorrisofs.texi b/xorriso/xorrisofs.texi
index 46ed6adf..67586e7a 100644
--- a/xorriso/xorrisofs.texi
+++ b/xorriso/xorrisofs.texi
@@ -2648,8 +2648,11 @@ MKISOFSRC may be used to point the program to a mkisofs startup file.
 SOURCE_DATE_EPOCH belongs to the specs of reproducible-builds.org.
 It is supposed to be either undefined or to contain a decimal number
 which tells the seconds since january 1st 1970. If it contains a number,
-then it is used as time value to set the default of --modification-date=,
---gpt_disk_guid, and --set_all_file_dates.
+then it is used as time value to set the default of
+@minus{}@minus{}modification-date=.
+@minus{}@minus{}gpt_disk_guid defaults to "modification-date".
+The default of @minus{}@minus{}set_all_file_dates is then "set_to_mtime".
+@*
 Startup files and program options can override the effect of SOURCE_DATE_EPOCH.
 @c man .SS 
 @c man .SH SEE ALSO