I burned a dvd using nero vision 4, and the dvd works on the computer and playstation.  But my dvd player cannot read the disc.  I know it's not the dvd, because I've tried with 4 different blank dvds, and they're still not working.  Also, I used the same type of dvd to burn on another computer, using Roxio, and those work fine, so I'm not sure what the problem is. I have a feeling it has something to do with Nero, but I can't figure out what I'm doing wrong. Can someone help? Thanks!