V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):
DVDRAM
       Digital Versatile Disk Random Access Memory (DVD), "DVD-RAM"
The Free On-line Dictionary of Computing (30 December 2018):
Digital Versatile Disk Random Access Memory
DVD-RAM
    (DVD-RAM) Rewritable DVD media that is recordable
   on both sides, giving up to 9.6GB 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)