For an important title I think the prudent record collector should have four copies at the bare minimum. I advise having five copies:
1) regular use record
2) back-up for regular use record
3) replacement for regular use record when regular use record gets old
4) extra copy disguised as “regular use record” for friends to play
5) second back-up in case “back-up for regular use record” gets lost
1) regular use record
2) back-up for regular use record
3) replacement for regular use record when regular use record gets old
4) extra copy disguised as “regular use record” for friends to play
5) second back-up in case “back-up for regular use record” gets lost