Hi I have a somewhat odd question about DVD players. As I understand it you can update a DVD players firmware by burning the new firmware image on to a CD and turning the player on with the CD in the drive (eg booting it). So my questions: Do all DVD players use this method? Does the DVD player check that the given firmware is compatible, and does it perform a checksum, before updating it? What would be the result of flashing another models firmware into a DVD player? I assume it would probably cause a fairly terminal failure. Many thanks.