<Li> DVD + R (2002) </Li> <Li> DVD + R DL (2004) </Li> <Li> DVD - R DL (2005) </Li> <Tr> <Th> Compact disc (1982) </Th> <Td> <Ul> <Li> CD - R (1988) </Li> <Li> CD - RW (1997) </Li> </Ul> </Td> </Tr>

Where is data stored temporarily on the computer so the hard drive does less work