"JT" == Juhapekka Tolvanen writes: JT> It is possible to create CD-ROM, that has both Rock Ridge- and JT> Joliet-extensions. So why don't you do so when creating TeX Live? AFAIK, the TeX Live CDROMs have both rockridge and joliet extensions. (i.e. both -r and -J options of mkisofs are used) Why do you think that it doesn't use these extensions? Best, v.