When I put VCD's into my DVD player, it will play them, but it stops sometimes early. It doesnt happen everytime, but lately it has been stopping like 10-20 minutes early. At first i thought it was because I was burning too fast, so I went from 8x to 4x. It still did it. Am I burning too fast still? Or is it something else? My DVD Player is a Sanyo DWM-370