Report T-Mark and Edit function in MZ-NH600D in Technical, Tips, and Tricks Posted June 16, 2020 Hi, Thanks for the reply. I understand HiMD cannot be edited. I was using this unit editing my old minidiscs recorded in SP/LP2 and found that editing function wasn't available (no T mark, etc). I could use a Web Minidisc to drag music to the disc with SP/LP2/LP4 instead of using Simple Burner or Sonic Stage. Hope there's a way to go around turning the editing function in the service mode. Thanks.