Recently, someone mentioned that they had a file
of zero size they couldn't delete.
I've just had a similar case (wonder if it came in
the email ;)). The name began with an A,
continued with the name of another, genuine, file
or folder, but with a space between each of the
Those spaces were in fact binary zeroes not space
characters (code 00 not 020h or 32d) - which makes
the filename completely illegal and unuseable.
Norton's equivalent of scandisk dealt with it by
replacing the zeroes with $s, which turned it into
a normal filename, deletable by normal means.