DVD+Rs (and DVD+RWs) come with the bitsetting section blank. This means it can be changed. By default, most DVD Burners will write DVD+R bitsetting on a DVD+R disc and it will be read by a DVD Player as a DVD+R. However, you can use a bitsetting or booktype utility to change what is written to the bitsetting portion of the disc. This means you can get your burner to burn your DVD+R with a DVD-ROM, DVD-R, DVD+R, DVD-RW, or DVD+RW bitsetting and the DVD Player will read it as whatever bitsetting you chose. This means that you can write DVD+Rs as DVD-ROMs (same type as store-bought DVDs) and they will play on ANY DVD Player, even extremely old DVD Players that didn't even support CDs or CD-Rs, let alone recordable DVDs (like a pair of my parents' DVD players) !