Re: Blockbuster,.....
Recently recaptured some Beta tapes from the 1980s and 90s, they held up VERY well, some camera footage from mid 80s held up very well.
The DVD below has 3 qualities of footage, some in Vhs and captured with wrong field order (very jittery), lots of decent SD footage (guessing DV or industrial kit), and some of my Beta stuff, carefully captured with correct field order. Played back on the VCR which recorded it.
https://www.dukevideo.com/prdDEMDVD293/Preserved-Lines-Gloucester-and-Warwickshire-DVD
I used good quality tapes (last few Sony Pro-X L500) in a F1 portable.
Most of my camera footage is on my 1TB drive D now