Trying to do a little HD cleaning and have a quick question. I have recently ripped some of my DVD's to my HD. This resulted in having .dvdmedia files after the rip. I then used handbrake to convert the .dvdmedia files to .m4v files. I imported all the .m4v files into iTunes to playback via ATV. Now that everything is imported into iTunes, is there any reason why I wouldn't want to delete the .dvdmedia & .m4v files that are on my HD? Are these not just extra copies taking up space? Figured I better ask before deleting. Thanks!