On Tue, 10 Oct 2000 10:50:24 CDT, Werner Kliewer wrote:

[.......]
>It may be that the DV encoding scheme is more forgiving of dropouts,
>but most digital compression means that one dropout makes the whole file
>useless. I suspect with DV it will show up most obviously as time-code breaks
>where there should not be any.

Actually, there is a dropout "cover-up" system employed.
The frames are divided into numerous squares and if
there is information missing from a current square,
the system substitutes the same square from a previous
frame. This works perfectly if there is no motion
(the current and previous frames have the same
information), but with swift motion it is easy to see
the "out-of-place" square (though many people do not
see these...). With a bad dropout, much of the picture
(in one frame, generally) may be substituted, and it
is more obvious - though I have seen this only with
recorded-over tapes where the correction system
appears to have more problems differentiating between
errors and not-errors when there is an image other
than black already on the tape...