Yup. Thanks for the deep dig and adding some appropriate focus. There are indeed somewhat relevant hints in the sections you note. T'was why I included the breadcrumb links in my OP.
"many twists, turns, and conditions." As with most laws, the Copyright Act with it's amendments, redacted paragraphs, subsections, and substitutions is orders of magnitude worse than the Bible with it's centuries of begats and begots.
Initially, rather than direct folks to one specific Act or section, I left it open so to be more conducive for individual's to search
all acres in that they may stumble upon bits I'd missed or glazed over. Now that the thread has matured and digested, I'll steer you/me away from sections 106 - 109 and say that the
Audio Home Recording Act- AHRA {sections
but not limited to 1002-1008-1009} is where the most meaty and pertinent law language resides. As it's particularly germane to the subject at hand, would there have been any sort of specific stipulation about personal use copies and retaining original media, the AHRA is the most logical and fitting place. Yet it's nowhere to be found. In other words,
if retaining physical media was a bona-fide and noteworthy conviction in order to follow the spirit of the law, why is it not there?