I think not this release but one of the others for star wars SE that came from a digibeta tape, some questions were asked as to ascertain if the individual or tape still was around.
I think it was the FLUNK, not the reivex or Gkar.
The person who also had Empire on digibeta but it was never released because the tape had problems or something not sure.]
A digital betacam tape is good enough quality for broadcast when it was aired and mostly good enough for DVD but it will never yield HD quailty.
All TV prints had their problems and so did the VHS and Laserdiscs. The only way too see the 97 edition ideally would be on film but who has them on 35mm? They shredded the prints or cut them into film cels years ago.