I just shot 4 rolls of kodak gold 100 for a friend's wedding.  After
developing at a local lab, the first two rolls turned out, and the
last one also came out well, but the third roll, only the first 4
shots came through.   The rest of the negative was blank.  The edge
markings (Kodak and frame number) was there, but the frames were all
blank.  Does this mean that the Kodak film was inproperly
manufactured?  I don't think it's my camera (Pentax PZ-1 SLR) because
the counter still counted, the motor and the mirror did not sound like
it was stuck, the last good frame in the negative was NOT black
(multiple exposures of the same frame) and it rewound properly at the
end of the roll.  It's not the developer because the negative edge
markings developed properly.  The pictures were shot outdoors on a
sunny day and I did not adjust anything on my camera for any special
settings.

Anyone experienced this before?