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My preference is to go with ISOs (vs individual files or other formats) simply because I like to preserve as much as possible the original disk format, and the ISO format has plenty of cross platform support with the ability to mount them as if they were disks. There's a pretty good discussion about what file format to use for archiving in the Mac environment, with additional considerations here: https://discussions. apple.com/thread/476610. John Lolis Coordinator of Computer Systems <https://whiteplainslibrary.org/> 100 Martine Avenue White Plains, NY 10601 tel: 1.914.422.1497 fax: 1.914.422.1452 https://whiteplainslibrary.org/ *When you think about it, *all* security is ultimately security by ignorance.* On Sat, Feb 24, 2018 at 2:34 PM, Eric Lease Morgan <[log in to unmask]> wrote: > I still have questions about personal archiving. > > I have a number of DVD’s designed to be played in a… DVD player. As I > migrate the medium forward, and as I archive them, I’m wondering, ought I > save the DVD’s as disk images, or I ought I save them as simply copies of > the files? The DVD's are/were designed to be on disks and played on a > television, but the disk images are in a Macintosh type of format — .dmg. > If I copy the files, then I can still play them with software, my DVD > player, but I sort of loose the idea of the medium, and I might not be able > to create a DVD in the future from these files. > > What do you suggest? > > — > Eric >