Hi. I just bought a portable DVD player - Philips PET708. I play store-bought DVD's on it, and it works fine. I play my own home movies (DVD+R), and the audio and video don't match up. The weird part is that my home movies play perfectly on my regular DVD player and on my computer. What could possibly cause this? Philips' technical support says I should get a new player, but I'm sure the problem would happen with that one too. Thanks for the help.