CD-DVD is a free multimedia application available for Android users. It serves as a 24-hour online flea market, allowing users to sell, buy, exchange or give away their used music CDs or DVDs. The app also provides users with useful service offers for their hobby, either in their vicinity or across the country.

The application eliminates the need to scour through different portals for bargains, services or advice. CD-DVD offers all of these in a single app, making it easy for users to save time and focus on their hobby. The app is ad-free, eliminating the annoyance of pop-up ads and the need to sift through unwanted advertising.

CD-DVD also doesn't have an expensive and elaborate payment system, allowing users to avoid commissions and transaction fees. The app protects users' privacy by not requiring personal information, except for an email address to examine double registration and password retrieval. Communication between buyers and sellers is done within the app, and users can exchange personal information if they choose to do so.

Overall, CD-DVD is a useful and convenient app for music CD and DVD enthusiasts who want to sell their used items or find services relevant to their hobby.