[MacDV] Re: 8x DVD Media

[William Hofius]

The problem with some DVDs burned at 8x not playing in some DVD players 
is reminiscent of the problem of burning audio CDs at high speeds and 
not playing in some CD players. For the CDs, the solution was to burn 
the disc at lower speeds.

I wish I could remember the exact cause of the problem for audio CDs, 
but it was one of two issues:

1.) The recordable layer of the CD itself was just slightly different 
in terms of reflectivity. Newer drives and players could read discs 
with a broader range of reflectivity but older and less expensive 
drives could not.

2.) Burning at higher speeds produces subtle artifacts in the data that 
are not present when burning at slower speeds. Exactly what these 
artifacts, I am not sure. However, older and less expensive drives 
could not deal with these artifacts.

One audio guy I know said to always burns audio CDs at 1/2 the maximum 
burn speed of the drive. Perhaps this rule of thumb would apply to DVDs 
as well?