Should I read at lower speeds?

[Machina]

I'm stupid, nevermind, and great thanks for help...

I just don't understand...
If there is an error in binary data then the whole freaking file/installation or whatever would be screwed, but no, CD-ROMs read data just fine...so....why can't another machine read data and copy it....

How do they do it at factories? I heard they like STAPLE an image onto a CD...