D-5 HD videotape for digital master copies

I've always been advised that when copying magnetic media, creating
both analog and digital master copies is the best possible bet for
preservation. There are benefits to both formats. We have a large
collection of Betacams and U-Matics that are due for copying, and my
inclination is to copy them onto Betacam SP and Digibeta, but lately
there has been talk that HD/D5 tape is a better option than
Digibeta. Can anyone else weigh in on HD/D5 as a preservation
format? And is the desire to have both an analog and a digital
master becoming outdated?


                                  ***
                  Conservation DistList Instance 22:30
                Distributed: Tuesday, November 25, 2008
                       Message Id: cdl-22-30-012
                                  ***