Ok what i have done is install Elyssa64 upgrade it to Intrepid, and update the MintTools to Felicia (so i have my own Pre-Felicia)
Her my Problem my new Base System (Hardy upgrade to Intrepid) can not mount CD's, DVD's, or USB-Drives BUT when i plug a USB-Cardreader on my PC (without an Card inside), i can too mount the others without Problems.
it isn't a Hardware Problem, because on Hardy/Elyssa it works, and in Windows to.
what is strange to, the same system i have tested befor on my VirtualBox an there, there wasn't any Problems like that.
i know it is bad too ask think about not offical systems, but perheps there is someone else having the same problem. an i thanks everyone for every tipp i can test o fix the problem.