There is a common problem with mobile DVD, that is, the bald head is directly exposed after the lid of the disc compartment is opened, and it is easy to break down. At present, only Malata has a lower failure rate among all brands. Since BBK stopped production, there is only one first-line brand. However, Malata is more expensive, and the prices of other brands are similar. Lino is a third-line brand. After Kim Jong stopped production in 1996, there have been various counterfeit products. This year, its trademark creditors authorized Kim Jong's DVD and mobile DVD respectively.