I transferred all my LPs and cassettes to MD when that technology was state-of-the-art, using a reasonably decent Hi-Fi. Sony's ATRAC may be a lossy compression format but suffice it to say it sounded good enough for me. And it meant less to carry when calling at a dance club - a case of CDs, a box of MDs and their respective players (which afforded some back-up if there were problems). Now I have everything on computer, Audacity-cleaned as necessary.

Incidentally I've kept all the original tapes and LPs for the sake of copyright - I can plead that my digital copies are entirely for technical convenience, which seems to be generally acceptable even if not strictly legal.