CD Maintainence questions.

[Louieoke]

All,
I apologize if this is covered elsewhere in the forum but here goes anyway:

I have upwards of 1100 discs now and use "CD projects" 208 capacity notebooks to house them. They seem to wear a bit even when I'm not using them which may just be natural, but I wondered if anyone had a suggestion on how to lengthen their lives as I really hate making multiple copies of the same disc, unless I use it ALOT.

Are there cd's that are more durable than others?
Which method of storage is better (notebooks, sleeves, etc.)?
Is there any type of treatment that would enhance the durability?
Is there a good way to repair them after the fact that would be faster/cheaper than re-burning?

Thanks to you all for any suggestions you might have.

Louieoke.