A dvd can be available for purchase.Logical formLearned from8 sentences. Software can be on dvds.Logical formLearned from8 sentences. A (tv series) can be on dvds.Logical formLearned from8 sentences. Dvds can be at a website.Logical formLearned from8 sentences. A dvd may include (music videos).Logical formLearned from8 sentences. Sales may pertain-to dvds.Logical formLearned from8 sentences. Dvds can be with special features.Logical formLearned from8 sentences. Dvds can be illicit.Logical formLearned from8 sentences. Dvds can be commemorative.Logical formLearned from8 sentences. Manufacturers can be constituted-of-or-filled-with dvds.Logical formLearned from8 sentences. A person may get dvds.Logical formLearned from8 sentences. Stores may sell dvds.Logical formLearned from8 sentences. A dvd can be a version.Logical formLearned from8 sentences. A market can be for dvds.Logical formLearned from8 sentences. A dvd of a movie may sell at a rate of a (videotape counterpart).Logical formLearned from8 sentences.