Note IS0-9660 filename restrictions in cdrtools post.

diff --git a/posts/cdrtools.mdwn b/posts/cdrtools.mdwn
index fbe13bf5177dc960af3fcedf7d1d3b756db02d8c..98770043a866f6e94e4ca4364cf8e342b562ef8e 100644 (file)
--- a/posts/cdrtools.mdwn
+++ b/posts/cdrtools.mdwn
@@ -7,8 +7,13 @@ will look something like
     $ mkisofs -o /tmp/image.iso /tmp/image
     $ sudo cdrecord -eject dev=/dev/cdrom /tmp/image.iso
 
+[ISO-9660][] has fairly strict filename restrictions, see `-iso-level`
+in `mkisofs(8)` or [Wikipedia][] for details.
+
 [cdrtools]: http://cdrecord.berlios.de/private/cdrecord.html
 [Gentoo tutorial]: http://www.gentoo-wiki.info/HOWTO_ATAPI_CD_Burning
+[ISO-9660]: http://en.wikipedia.org/wiki/ISO_9660
+[Wikipedia]: http://en.wikipedia.org/wiki/ISO_9660#File_and_directory_name_restrictions
 
 [[!tag tags/linux]]
 [[!tag tags/tools]]