What's the best way to store dvd files?

after you burn your dvd, whats the best way to store the files so it doesnt take up so much space? zip them?

Thanks!!

How do you mean after burn? If you’ve burned them to a -R or +R disc, the disc is closed and you can’t change it. And why to keep the files on your hdd, if you’ve made a backup?

After you burn your dvd, delete the files. They take up less space then…