Throughout the production cycle, Microsoft has changed the Xbox's DVD drive several times. Unfortunately, some drives are less compatible with recordable media than others. Most Xbox systems should be compatible with CD-RW media, but most are incompatible with one-time-use CD-R media. DVD-R media has been confirmed to work with all variants of Microsoft's Xbox, so it is the recommended (albeit pricey) choice. For a more detailed discussion of media compatibility, please consult the Xbox Linux Boot CD/DVD Burning HOWTO (http://www.xbox-linux.org/Xbox_Linux_Boot_CD/DVD_Burning_HOWTO) at xbox-linux.org.