--- a/laser-disk.rst	Fri Jul 17 23:57:30 2009 +0300
+++ b/laser-disk.rst	Tue Jul 21 22:58:49 2009 +0300
@@ -34,10 +34,45 @@
 |DVD+R DL  | 4,173,824 | 8,547,991,552 | 8.5  |  7.961 |
 +----------+-----------+---------------+------+--------+
 
+* Burning tools.
 
+** cdrtools.
+
+In 2006 build system of cdrtools changed and have CDDL, which incomputable
+with GPL.
+
+See
+
+  http://cdrecord.berlios.de/private/cdrecord.html
+  http://en.wikipedia.org/wiki/Cdrecord
+
+** cdrkit.
+
+Fully GPL alternative for cdrtools.
+
+See
+
+  http://www.cdrkit.org/
+  http://en.wikipedia.org/wiki/Cdrkit
+
+*** Make iso image.
+
+  $ genisoimage -A "<info>" -gui -J -R -o <img-file> <dir1> <dir2> ...
+
+<info> is up to 128 bytes. -J adds Joliet directory records wich useful on
+Windows. -R adds the Rock Ridge protocol.
+
+To test your image mount it (on Linux):
+
+  $ sudo mount -t iso9660 -o loop,ro <img-file> <mnt-point>
+
+*** Burn iso image.
 
 
 
-
+** cdrskin.
 
+See
 
+  http://scdbackup.sourceforge.net/cdrskin_eng.html
+  http://en.wikipedia.org/wiki/Cdrskin