The original is a single layer DVD-ROM.
The closest you can get is a single layer DVD+R that uses BookType bitsetting to DVD-ROM (as seen in the second picture in post #160 above). The next best thing is a DVD-R.
There may be other forms of copy protection on this DVD that I know nothing about, so I have no further advice than to use good quality DVD+R media (e.g.Verbatim or Taiyo Yuden) burned at a reasonable speed, e.g. 8x on a desktop drive or 4x on a laptop drive.
Others will have to advise on the copy-protection part (if applicable).