differente version of securom ???? (packer)

[bidule]

i want to know if securom have differente version . ok first game adibou , i make a perfect backup of adibou and it's a securom protected game . when i make my backup i tick two read and at writing nothing . i open the log of clone and no read errors and all it's ok . now with diablo it's not the same thing . i scan with clony xxl no read errors and it's a securom protected game . i tick two read subchannel at reading and nothing at writing . all it'ok i open the log and i start the image after few minute i see read errors (WHY CLONY HAVE NOT SEE THE READ ERRORS). and the securom have no read errors . the cd is ok little scratsh but he install very good with original . if its the scratsh who do this explain to me how i can correct this . thank a lot and sorry for my bad english