2.4.6 About SD Memory Card
SD Memory Card is a slim and compact bridge media
linking various kinds of digital equipment through its easy connectivity.The card's control circuitry allows data to be read and written (in its protection area) only when appropriate external devices are detected. Using decoder software, an SD Memory Card- compatible device can play music, video clips and more without a drive mechanism like those in CD and DVD players.
2.5 Zero Bright DotTM
Enjoy 
have imperfections, termed as 'bright dots' by the LCD industry. A limited number of bright dots were once considered an inevitable side effect of LCD mass production.With Philips' strict quality control procedures used in our Portable DVD Players, our LCD displays are produced with zero tolerance for bright dots. Select Portable DVD Players come with Philips Zero Bright DotTM Policy to guarantee optimal screen quality.Warranty service varies from region to region. Contact your local Philips representative for more detailed information.
2.6 Compatibility of the USB connection on this portable DVD player:
This portable DVD player supports most USB Mass storage devices (MSD) that are compliant to the USB MSD standards.
—Most common Mass storage class devices are flash drives, memory sticks, jump drives and etc.
—If you see a "Disc Drive" show up on your computer after you
plugged the mass storage device into your computer, most likely it is MSD compliant and it will work with this portable DVD player.
If your Mass storage device required a battery / power source. Please make sure you have a fresh battery in it or charge the USB device first and then plug it into the portable DVD player again.