diff --git a/ng_src/isoburn.c b/ng_src/isoburn.c
index 5f718016..ef5f835b 100644
--- a/ng_src/isoburn.c
+++ b/ng_src/isoburn.c
@@ -256,14 +256,15 @@ int isoburn_prepare_disc_aux(struct burn_drive *d, struct burn_disc **disc,
  wopts.level = opts->level;
  wopts.rockridge = opts->rockridge;
  wopts.joliet = opts->joliet;
+ wopts.iso1999 = opts->iso1999;
  wopts.omit_version_numbers = opts->omit_version_numbers;
  wopts.allow_deep_paths = opts->allow_deep_paths;
+ wopts.allow_longer_paths = opts->allow_longer_paths;
  wopts.max_37_char_filenames = opts->max_37_char_filenames;
  wopts.no_force_dots = opts->no_force_dots;
  wopts.allow_lowercase = opts->allow_lowercase;
  wopts.allow_full_ascii = opts->allow_full_ascii;
  wopts.joliet_longer_paths = opts->joliet_longer_paths;
- /* wopts.copy_eltorito = opts->copy_eltorito; */
  wopts.sort_files = opts->sort_files;
  wopts.replace_dir_mode = opts->replace_dir_mode;
  wopts.replace_file_mode = opts->replace_file_mode;
diff --git a/ng_src/isofs_wrap.c b/ng_src/isofs_wrap.c
index 6cfa1eb8..c586220a 100644
--- a/ng_src/isofs_wrap.c
+++ b/ng_src/isofs_wrap.c
@@ -161,6 +161,7 @@ int isoburn_read_image(struct burn_drive *d,
    return -2;
  ropts.norock = read_opts->norock;
  ropts.nojoliet = read_opts->nojoliet;
+ ropts.noiso1999 = read_opts->noiso1999;
  ropts.preferjoliet = read_opts->preferjoliet;
  ropts.mode = read_opts->mode;
  ropts.uid = read_opts->uid;
@@ -181,6 +182,8 @@ int isoburn_read_image(struct burn_drive *d,
 
  read_opts->hasRR = features.hasRR;
  read_opts->hasJoliet = features.hasJoliet;
+ read_opts->hasIso1999 = features.hasIso1999;
+ read_opts->hasElTorito = features.hasElTorito;
  read_opts->size = features.size;
  return 1;
 }
diff --git a/ng_src/libisoburn.h b/ng_src/libisoburn.h
index ae043868..619d60bf 100644
--- a/ng_src/libisoburn.h
+++ b/ng_src/libisoburn.h
@@ -90,6 +90,7 @@ void isoburn_disc_erase(struct burn_drive *drive, int fast);
 struct isoburn_read_opts {
     unsigned int norock:1; /*< Do not read Rock Ridge extensions */
     unsigned int nojoliet:1; /*< Do not read Joliet extensions */
+    unsigned int noiso1999:1; /*< Do not read ISO 9660:1999 enhanced tree */
     unsigned int preferjoliet:1; 
                 /*< When both Joliet and RR extensions are present, the RR
                  *  tree is used. If you prefer using Joliet, set this to 1. */
@@ -107,6 +108,16 @@ struct isoburn_read_opts {
                              to 0 if not. */
     unsigned int hasJoliet:1; /*< It will be set to 1 if Joliet extensions are 
                                   present, to 0 if not. */
+
+    /**
+     * It will be set to 1 if the image is an ISO 9660:1999, i.e. it has
+     * a version 2 Enhanced Volume Descriptor.
+     */
+    unsigned int hasIso1999:1;
+
+    /** It will be set to 1 if El-Torito boot record is present, to 0 if not.*/
+    unsigned int hasElTorito:1;
+
     uint32_t size; /**< Will be filled with the size (in 2048 byte block) of 
                     *   the image, as reported in the PVM. */
     unsigned int pretend_blank:1; /* always create empty image */
@@ -120,34 +131,70 @@ struct isoburn_source_opts {
     /* Options for image generation */
 
     int level;  /**< ISO level to write at. */
-    int flags;  /**< Which extensions to support. */
-    int relaxed_constraints; /**< see ecma119_relaxed_constraints_flag */
     
     /** Which extensions to support. */
     unsigned int rockridge :1;
     unsigned int joliet :1;
+    unsigned int iso1999 :1;
 
     /* relaxed constraints */
+
+    /*
+     * Relaxed constraints. Setting any of these to 1 break the specifications,
+     * but it is supposed to work on most moderns systems. Use with caution.
+     */
+
+    /**
+     * Omit the version number (";1") at the end of the ISO-9660 identifiers.
+     * Version numbers are usually not used.
+     */
     unsigned int omit_version_numbers :1;
+
+    /**
+     * Allow ISO-9660 directory hierarchy to be deeper than 8 levels.
+     */
     unsigned int allow_deep_paths :1;
+
+    /**
+     * Allow path in the ISO-9660 tree to have more than 255 characters.
+     */
+    unsigned int allow_longer_paths :1;
+
+    /**
+     * Allow a single file or directory hierarchy to have up to 37 characters.
+     * This is larger than the 31 characters allowed by ISO level 2, and the
+     * extra space is taken from the version number, so this also forces
+     * omit_version_numbers.
+     */
     unsigned int max_37_char_filenames :1;
+
+    /**
+     * ISO-9660 forces filenames to have a ".", that separates file name from
+     * extension. libisofs adds it if original filename doesn't has one. Set
+     * this to 1 to prevent this behavior
+     */
     unsigned int no_force_dots :1;
+
+    /**
+     * Allow lowercase characters in ISO-9660 filenames. By default, only
+     * uppercase characters, numbers and a few other characters are allowed.
+     */
     unsigned int allow_lowercase :1;
+
+    /**
+     * Allow all ASCII characters to be appear on an ISO-9660 filename. Note
+     * that "/" and "\0" characters are never allowed, even in RR names.
+     */
     unsigned int allow_full_ascii :1;
+
+    /**
+     * Allow paths in the Joliet tree to have more than 240 characters.
+     */
     unsigned int joliet_longer_paths :1;
 
     unsigned int sort_files:1;
                 /**< If files should be sorted based on their weight. */
 
-    unsigned int copy_eltorito:1;
-        /**<
-         * In multisession discs, select whether to copy el-torito catalog
-         * and boot image. Copy is needed for isolinux images, that need to
-         * be patched. However, it can lead to problems when the image is 
-         * not present in the iso filesystem, because we can't figure out
-         * its size. In those cases, we only copy 1 block of data.
-         */
-    
     /**
      * The following options set the default values for files and directory
      * permissions, gid and uid. All these take one of three values: 0, 1 or 2.
diff --git a/test/compile_xorriso.sh b/test/compile_xorriso.sh
index 19e11e46..b2b5683b 100755
--- a/test/compile_xorriso.sh
+++ b/test/compile_xorriso.sh
@@ -75,6 +75,7 @@ then
   libisofs="$libisofs $isofs"/fs_local.o
   libisofs="$libisofs $isofs"/fsource.o
   libisofs="$libisofs $isofs"/image.o
+  libisofs="$libisofs $isofs"/iso1999.o
   libisofs="$libisofs $isofs"/joliet.o
   libisofs="$libisofs $isofs"/libiso_msgs.o
   libisofs="$libisofs $isofs"/messages.o
diff --git a/test/ng_xorrisoburn.c b/test/ng_xorrisoburn.c
index b2ea8773..0c6b2250 100644
--- a/test/ng_xorrisoburn.c
+++ b/test/ng_xorrisoburn.c
@@ -355,6 +355,7 @@ int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
  memset(&ropts, sizeof(ropts), 0);
  ropts.norock= 0;
  ropts.nojoliet= 0;
+ ropts.noiso1999= 1;
  ropts.preferjoliet= 0;
  ropts.uid= 0;
  ropts.gid= 0;
@@ -511,14 +512,15 @@ int Xorriso_write_session(struct XorrisO *xorriso, int flag)
  sopts.level= 2;
  sopts.rockridge= 1;
  sopts.joliet= !!xorriso->do_joliet;
+ sopts.iso1999= 0;
  sopts.omit_version_numbers= 0;
  sopts.allow_deep_paths= 1;
+ sopts.allow_longer_paths= 0;
  sopts.max_37_char_filenames= 0;
  sopts.no_force_dots= 0;
  sopts.allow_lowercase= 0;
  sopts.allow_full_ascii= 0;
  sopts.joliet_longer_paths= 0;
- sopts.copy_eltorito= 1;
  sopts.sort_files= 1;
  sopts.replace_dir_mode= 2*!!xorriso->do_global_mode;
  sopts.dir_mode= xorriso->global_dir_mode;
diff --git a/test/xorriso_makefile_am.txt b/test/xorriso_makefile_am.txt
index b2fba74e..63f86940 100644
--- a/test/xorriso_makefile_am.txt
+++ b/test/xorriso_makefile_am.txt
@@ -47,6 +47,8 @@ xorriso_xorriso_SOURCES = \
 	libisofs/tree.c \
 	libisofs/image.h \
 	libisofs/image.c \
+	libisofs/iso1999.h \
+	libisofs/iso1999.c \
 	libisofs/fsource.h \
 	libisofs/fsource.c \
 	libisofs/fs_local.c \
diff --git a/test/xorriso_timestamp.h b/test/xorriso_timestamp.h
index 053fec45..d14dedca 100644
--- a/test/xorriso_timestamp.h
+++ b/test/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2008.01.18.101933"
+#define Xorriso_timestamP "2008.01.19.090417"