diff --git a/xorriso/xorriso.1 b/xorriso/xorriso.1
index 324f7795..90ee9f41 100644
--- a/xorriso/xorriso.1
+++ b/xorriso/xorriso.1
@@ -2,7 +2,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO 1 "May, 15, 2008"
+.TH XORRISO 1 "Jun, 02, 2008"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -1603,7 +1603,7 @@ pseudo-drives or as log files.
 But its alter ego, osirrox, is able to extract file objects
 from ISO images and to create, overwrite, or delete file objects on disk.
 .TP
-\fB\-osirrox\fR ["on"|"device_files"|"off"][:"concat_split_on"|"concat_split_off"]
+\fB\-osirrox\fR "on"|"device_files"|"off"[:option:...]
 Setting "off" disables disk filesystem manipulations. This is the default
 unless the program was started with leafname "osirrox". Elsewise
 the capability to restore files can be enabled explicitly by -osirrox "on".
@@ -1619,10 +1619,12 @@ Due to a bug of previous versions, device files from previous sessions might
 have been altered to major=0, minor=1. So this combination does not get
 restored.
 .br
-"concat_split_on" is default. It enables restoring of split file directories
-as data files if the directory contains a complete  collection of -cut_out
-part files. With "concat_split_off" such directories are handled as any
-other ISO image directory.
+Option "concat_split_on" is default. It enables restoring of split file
+directories as data files if the directory contains a complete collection
+of -cut_out part files.
+.br
+With option "concat_split_off" such directories are
+handled as any other ISO image directory.
 .TP
 \fB\-cpx\fR iso_rr_path [***] disk_path
 Extract single leaf file objects from the ISO image and store them under