Bringing tapes to Room Temp?

I'm getting ready to test out my 9-Track tape drive before hauling it into work for some data recovery. I have a box of brand new tapes, which unfortunately haven't been stored under ideal conditions for most of their life (they're probably about 20 years old). Currently they're in the garage, which at the moment is close to freezing. How should I go about bringing the tapes to room temp? The main 4 tapes to be read have been stored under proper conditions for most of their life. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com | OpenVMS Enthusiast | | | Photographer | +----------------------------------+----------------------------+ | My flickr Photostream | | http://www.flickr.com/photos/33848088 at N03/ |