There is no "proper" article to use before "old DVDs" because the phrase describes a general category of items in the plural form. Why No Article?
If you are looking for places to shop, enthusiasts on Reddit and resale experts suggest:
: If you are looking for any old DVDs (not specific ones), you use the zero article (no article at all). Correct: "Where to buy old DVDs." Incorrect: "Where to buy an old DVDs." When to Use "The" where to buy old dvds
If you tell me , I can find specific local shops near you.
: Check local thrift stores , pawn shops , record stores , and Goodwill locations. There is no "proper" article to use before
: eBay and Amazon (used section) are the largest sources for rare or out-of-print titles.
Use only if you are talking about a specific, previously mentioned group of DVDs. Correct: "Where to buy old DVDs
: In English, you don't use "a" or "an" with plural words.