DVD rack over air conditioning vent... DVD deterioration possible?
 

My 5 row DVD rack is positioned over a 12" by 6" air conditioning vent. There's a one inch gap between the vent and the bottom row of DVD's. Only 50% of the vent is being obscured.

The rack's open air design looks similar to this:
http://www.thejungles.com/soloakdow275.html

Is there a danger of damaging the DVD's by keeping them over the vent? I'm concerned about both seasons: cool air (summertime) and warm air (winter).

Mods, if this is considered too off topic, please move it appropriately.

As long as you avoid extreme temperatures, i wouldn't imagine there would be a problem. If you can move it, it would probably be best to avoid the situation and maximize air circulation.

anytime you have the increased possibility of cold/warm air interactions, you have the possibility for moisture condensation...

moisture is not good for DVDs...

in general, keeping *anything* over an a/c vent is "not a good idea."

I think a good rule of thumb is that DVD's are a pretty expensive investment to gamble with, even if the risk of placing them over an A/C vent is questionable.

Find an alternate spot for storing them and put your mind at ease.