What is the difference between CD-R, CD-RW, DVD+R, DVD-R, DVD+RW?
DVD stands for Digital Versatile Disk, CD stands for Compact Disk. The R in both cases means that the disk is recordable provided you have the correct hardware, i.e. a DVD writer or a CD writer (called a burner). The + and are competing DVD recording formats. The newest DVD recorders can read or write using either format. The RW means that the disk can be reformatted and used again and again. The speed that a device can write (burn) a rewritable disk is limited by the device and the media. RW disks can be written at various speeds but are slower than CDs.