: Sites like eBay and Decluttr often offer "Buy 3, Get 1 Free" promotions.

: When buying used, look for terms like "Like New" or "Very Good." Avoid "Acceptable" unless you don't mind scratches on the case or disc.

: Double-check that you are buying a DVD and not a Blu-ray or 4K UHD disc if you only have a standard DVD player. (Note: Blu-ray players can play DVDs, but DVD players cannot play Blu-rays).

: Some older DVDs come in "Full Screen" (4:3 aspect ratio), which crops the sides of the movie to fit old tube TVs. Look for "Widescreen" or "Anamorphic Widescreen" to see the film as it was intended for theaters. 3. Tips for Finding the Best Deals

: The most obvious choice for variety and convenience. They carry almost every mainstream release and often have competitive pricing on new titles.