by others in the future, but of course they were stupid, and didn't think
that far ahead. (Such is the normal path of dumb camera manufacturers when it
comes to metadata.)</p>

<p>The new Samsung models simply split the preview and write it to separate APP2
segments with no header. If they had written a header (like "PREVIEW\0" for
example), then the technique could be portable and useful. But they didn't.
Without a header, the data can not easily be distinguished from other random APP2
data, so this techni