the order start/wait %systemdrive% makes it possible to start a file being on the disc system ¶
I would like to know that it is the order which makes it possible to start a file but this time Ci being on Cd and thus in one of my reader Cd ¶
excuse me for the translation but I do not speak too English ¶

if you look at the RunOnceEX section, in the batch file there....there are statements of
IF EXIST and whatnot....

that should explain things. Then replace %systemdrive% with %cdrom% and you should be fine.

thank you