from
The Free On-line Dictionary of Computing (8 July 2008)
Digital Versatile Disk Random Access Memory
DVD-RAM
<storage> (DVD-RAM) Rewritable {DVD} media that is recordable
on both sides, giving up to 9.6{GB} of storage. A drive can
record to disk and read from it at the same time, so the term
{full duplex} is often used. There are two general types of
media: traditional discrete disk in DVD or Jewel case, and one
in a permanent case like a large floppy; the disk remains in
the case, and the case goes into the drive. The former can
sometimes be read by regular DVD drives; the latter obviously
cannot.
Technical details, somewhat dated, at burnworld.com
(http://burnworld.com/dvd/primer/dvdram.htm).
(2005-01-26)