Can It Damage a Disk?

[SegaNomadman]

I've seen sellers that use an ultra violet light pen to mark their used games inventory, I'm always worried to buy from them though because I'm afraid the pen could, over time, damage the disk. I was wondering, does this cause any damage or am I just being paranoid?

[ZX the Hedgehog]

UV will damage discs if you shine it on the back for long enough (and I mean quite a while),but writing on a case and shining a UV light on it every once and a while won't hurt it. Personally, I wouldn't worry, but, if you feel you may be hurting your games, just don't do it.

[SegaNomadman]

That's what I figured. Thanks!  (BTW I don't do this to my games I was thinking on buying from someone who did this.)

[wiggy]

I know normal inks can eat away at the lacquer top coat on optical discs over time (and I've actually seen it happen).  Who knows with UV reactive inks. Test of time is what it would take to find out...

[SegaNomadman]

Ya. I just decided not to risk it and bought from someone else. Thanks for the help though guys! 

[Rx_79]

What sellers are doing this. I hate to buy a rare game only to find out years later someone drew a invisible dick on it.

[Lashek]

What sellers are doing this. I hate to buy a rare game only to find out years later someone drew a invisible dick on it.

I would laugh my ass off if I found this in my collection.

[shenske]

What sellers are doing this. I hate to buy a rare game only to find out years later someone drew a invisible dick on it.

This. Any marking whatsoever would bother the shit out of me

[TDIRunner]

What sellers are doing this. I hate to buy a rare game only to find out years later someone drew a invisible dick on it.

This. Any marking whatsoever would bother the shit out of me

I'm trying to figure out the reason for doing it.  My first though was for security, or some way to prove it was their property.  But since they sell their games that wouldn't help much.  So I don't know what to think.

[Ozzy_98]

You mean the kind of pen that marks something so it reacts under a black light? 

[SegaNomadman]

Seems that the auction on ebay ended. I want to find the seller now but I can't seem to. They put it in the description though so I guess look out for that there. Didn't buy it but I'll look out to see if the seller shows up again.

[SegaNomadman]

What sellers are doing this. I hate to buy a rare game only to find out years later someone drew a invisible dick on it.

This. Any marking whatsoever would bother the shit out of me

I'm trying to figure out the reason for doing it.  My first though was for security, or some way to prove it was their property.  But since they sell their games that wouldn't help much.  So I don't know what to think.

I think it'd be in case the buyer would buy the disk, swap it for a broken copy, and return it for money.