on the head drum, are 40 microns wide. Writing speed at the heads is 33.63 m/s, linear tape speeds are 286.588 mm/s for NTSC, 286.875 mm/s for PAL.

Because of the uncompromising picture quality, component processing and uncompressed recording, D-1 was most popular in high-end graphic and animation production - where multiple layering had previously been done in short run times via hard drives (Quantel Harry, Henry, Harriet, Hal or Abekas DDR) or via multiple analog machines running at once. Hard drives