How to remove scotch tape brown residue from album covers


Back in the day, when Vinyl was cheap and widely available someone urged me to apply scotch tape to the edge of my album covers; to better preserve them. Ugh what a mistake! Decades later the tape has turned brown and dried out. I can get the tape off but not the brown residue color left behind. Any suggestions for something to remove the brown color?

rrm
I use Eucalyptus oil first. Spread a bit over the shop label or tape with a cotton bud and do this a couple of times. Usually, it gently peals off. If not, revert to some of the other suggestions.
3M makes a citrus-based adhesive remover that's just the ticket.  You might try WD-40, but it leaves an oily residue.
I’ve had great success with lighter fluid. Friend of mine who deals in vintage re rods turned me onto it.