I don’t know how it happened, but one of my CDs got a piece of Scotch tape stuck on the bottom of it. The tape peeled off fairly easily, but there is some of the stickiness left on the CD, and it’s causing the sound to skip. Does anyone have any suggestions on how to get it off?
Goo-Gone
Sandpaper. 
Just kidding. I find that rubbing alcohol or lighter fluid works well to remove adhesives. I don’t know how it would affect a CD though.
Goo-Gone is available at hobby, craft & sewing stores. It does not harm even the softest of plastics but it sure does do a number on adhesive residue.
I’d go ahead and give any household solvent a try, just test it on the non-data side first. Rubbing alcohol will probably do it for you.
I do not advise giving “any” household solvent a try, and especially not on the label side of the disc (I assume that’s what you mean when you say “the non-data side”).
Although denatured alcohol is probably OK, many other household solvents will cause irreversable damage to plastic. Furthermore, the actual data layer in the CD is much closer to the label side than it is to the clear plastic side. Any damage, scratches, etc to the label side are much more likely to affect the data than is damage to the clear side.
I don’t have my data & specs manuals with me right now, but here is a site that gives a relative cross-sectional view of a CD.
FYI
Per Attrayant DO NOT use Goo Gone or similar solvent on the surface of a CD and certainly not on the label side. Using the sticky side of a piece of scotch tape as a pick tool up will probably pick up most of it and you can finish the rest with alcohol although this will take some time as alcohol is a poor solvent for tape gum.
I must indeed be tired. the reverse side is certainly not as safe as I thought. There are probably safer area on the disk to test the solvent. I certainly wasn’t suggesting that you etch clear through the lab, but rather conduct a limited test on what seemed the less critical surface. I was not talking about making penetrating scratches, just testing the surface.
In addtion, this sight http://www.carrolltouch.com/CTgraph/techpoly.htm suggests that not all household solvents are completely safe for a polycarbonate resin. Particularly nail polish remover might have some bad effects depending how you used it. The same site lists denatured alcohol (ethanol) and rubbing alcohol (propanol) as pretty safe for use with polycarbonate resin.
I don’t know about goo gone.
That’s basically why I asked, because I was afraid that using Goo-Gone or a solvent would damage the plastic. Since I posted the OP I took a cloth and used some elbow grease to get the sticky spots off as best I could, and I got it almost completely clean. If it still skips, I’ll try some alcohol.
Thanks, everyone.
With the sting of being twice wrong still burning at my wounds, I realized something. Within ten feet of me I have 1) a CD I don’t care much about and 2) a wide array of solvents. So I set off to put my first post to the test.
**solvent 1 - acetone **(as found in nail polish remover)
tested an area of the label and got some very slight bleeding of colors on to the rag and some hazing of the clear center portion of the disk, but absolutely nothing indicating any penetrating damage to the sensitive areas of the disk. surface damage only.
Thus results indicate this would be a bad solvent for cleaning the face of the disk.
** solvent 2 - toluene **
Results: very bad. don’t use this.
** solvent 3 - ethanol ** (might actually be the non-denatured variety 
Results no damage to the label side. I then cleaned the face side thoroughly. everything seemed fine. I popped the CD in, it’s now halfway through and there have been no problems.
I then pull out a piece of packing tape and tested the effect of ethanol on the adhesive side. It dissolved that stuff right away.
All in all ethanol would probably work like a charm.
** solvent 4- propanol ** I decided not to do propanol because I’d have to get it out of the storage cabinet. (the other solvents were already in handy squeeze bottles.) I’ve already wasted almost half an hour on this so forget it.
If you want to use it test it yourself. The inner most portion of the disk give a good test as does the label side, there was no scratching or etching (except with toluene- don’t use that).
I use lighter fluid to remove that stuff…
although I have never used it on a CD label… I’d test it on one you don’t mind damaging, such as a free one that comes with a magazine…