Purpose

• The purpose of the portable DVD player is to allow people to watch DVD movies almost anywhere. It allows people to watch DVDs in areas without electricity, as well as without a large TV screen and DVD player.
  
  

Creation

• The first portable DVD player on the market was originally introduced in 1988.
  
  

Multiple Functions

• Modern DVD players not only allow people to listen to music as well as watch movies, but they have an assortment of other functions as well. Many come with USB slots, SD card slots, and a plug-in for the iPod. Some DVD players also have external AV inputs.
  
  

Screen

• Most portable DVD players have an LCD screen that is attached. Normally, screen sizes are 6 to 7 inches; but 10- to 12-inch screens are available. The screens are normally very easy to position---some can rotate up to 180 degrees.
  
  

Price

• As portable DVD players become more common, they are becoming more affordable as well. Portable DVD players vary in price--ranging from as little as $80 to as much as $500.
  
  

Quality

• One of the main complaints about portable DVD players is that they have a much lower screen quality than most TVs. Normally, the screen resolution for portable DVDs is somewhere around 480 by 234 pixels. The newer Blu-ray models have a much better screen resolution.