Whenever I move a file from one drive to another that has markers saved in the file (by checking the save project markers in media file box in Vegas) the markers that were saved in the file dissapear. For example, I'll save the render to the D drive and then I'll import the render into Vegas or DVDA and the markers are in the file. Then if I move the rendered file to my external hard drive and then re-import the render into DVDA or Vegas the markers are gone. Why is this?

Thanks
-Jim