Go digital and don't worry about the discs; and converting those discs to
digital would be a supreme waste of time, duplicating work that has been
done by many before you.
1000 discs ~~ maybe 15000 titles, many of them duplicate songs ~~ you'll
be able to offer a much larger selection to your singists with a computer:
You'll very soon get fed up lumping the discs about.
Discs are easy to damage, and you have the whole faffle of changing discs
every time you change song.
You'll find it hard to sell the discs unless there are any rare ones.