Supposedly my Plextor dvd burner is Ritek 4x DVD-R compatible. I went to the following website, which provided a list of dvd brands compatible with my dvd player: http://www.meritline.com/ritek-dvd-r-dvdr-4x-blank-media-94-bulk.html Under the various types of Ritek dvd-r's, it had a 9.4 gb dvd, which was 4.7 (or 4.3) gb on each side, i.e. it was dual-sided. I remember hearing something about how dual-sided dvds aren't available or can't be burnt yet or something, so I was wondering if I simply misheard, and can buy them and they'll work just like regular dvd's so long as I flip them over to burn on each side. Thanks.