I also recommend placing the negative in a safety deposit box for security. Most photographers keep their negatives in a standard filing cabinet, which offers no fire protection. Many also will destroy the negatives of your wedding after one year. This is to force you to buy your wedding pictures quickly. If your budget is tight and you own the negatives, you can get your reprints and enlargements at your convinces or if your album is destroyed it will be replaceable.
Proofs are standard prints.
A standard print is what a mine-photo lab does. The negatives are printed full frame with out any cropping. If the negative was exposed correctly and framed and centered when the shot was made, good quality standard prints can be made for your album. You my even chose to use many of your proofs supplementing them with larger prints in your album. Professional labs make custom prints by hand.