√ DVD recorders are more expensive than VCRs.
√ DVD has built-in copy protection and regional lockout.
√ DVD uses digital compression. Poorly compressed audio or video may be blocky, fuzzy, harsh, or vague.
√ The audio downmix process for stereo/Dolby Surround may reduce dynamic range.
√ DVD doesn't fully support HDTV.
√ Some DVD players and drives can't read CD-Rs.
√ Some DVD players and drives can't read recordable DVDs.
√ Most DVD players and drives can't read DVD-RAM discs.
√ Very few players can play in reverse at normal speed.
√ Variations and options such as DVD-Audio, DVD-VR, and DTS audio tracks are not supported by all players.
√ Vagueness of the DVD specification and inadequate testing of players and discs has resulted in incompatibilities. Some movie discs don't function fully (or don't play at all) on some players.