Making a copy protected CD



Hello Friends,
I have written an application and now i want
to lock it by some software … In fact , i have
a necessary file in this CD that shouldn’t be
copy by users at all … i have tried 2 or 3 times
by a Application called “TZ Copy Protection” …
i made a CUE file from CD contents , then i increased
the size of followed file then i burnt CUE file by Nero …
but my CD is unable to be read by CD-Rom …
can anybody help me in order to handle this problem ?