Wide Media File SupportSome portable DVD players can play all kinds of media file formats. This is convenient since you don't have to worry about using a video converter or transferring your files to your DVD player.
Astell&KernOne of the first companies to launch the portable audio player in the market, Astell&Kerns products (AK Jr and Kann) delivers great sound.
For portable video players, there were portable TVs and DVD players. There was quite a selection for you to choose from. Now, the relevance of these seems to have died down a little bit. Although it would be wrong to say such players are not available anymore.