First off, please excuse my ignorance as I am 
still a newbie.  I recently bouoght a cel with a 
background.  I e-maield the seller and asked them 
to put something in between the cel and the back 
ground to prevent any sticking and they e-mailed 
back telling me that it is a "color copy 
background".  What is the difference between a 
color copy background and a normal matching 
background?  I know that usual backgrounds are 
made of water color paint, but what is a "color 
copy background" made of and is that better for a 
cel than the water color one??  I am confused!!  
Thanks in advance for your help.

J-Decker