Hi, sorry for that simple question. Which flags (when mastering a disk e.g. with xcdroast) are necessary to preserve the case of filenames. I have the problem, that filenames which contain different(!) cases are preserved but all lower case filenames are translated to upper case or vice versa. Many thanks for hint, Helmut Jarausch Lehrstuhl fuer Numerische Mathematik RWTH - Aachen University D 52056 Aachen, Germany