In Windows 8.0, copying a file from C: to D: changes its Created and Accessed time stamps. But the Modified stamp is left untouched.
Moving the file from C: to D: instead changes the Accessed stamp, but leaves Created and Modified stamps untouched. Both C: and D: are partitions on the same drive. It's the same behavior when moving the file from C: to F: which is an external disk drive.
If I am not mistaken, on Windows 7 and older versions, when you moved a file to another disk (another partition or another drive) it also changed the modified stamp. Also, when you copy files to a DVD and then copy them back to a hard drive they get new Created, Accessed and Modified stamps.
Why is it behaving like this? What's the purpose of all of this? Why can't at least the Modified and Created stamps be left alone? Why can't you carry this information with you as you move (or copy) the file around?