this came via email to me from a bird photography group I belong to. Old news to me, but thought I'd pass it on
Service bulletin from Canon:
Captured images on some 80x Lexar CompactFlash cards can be lost when
used with the Canon EOS-1Ds Mark II, EOS-1D Mark II, EOS 20D, EOS
Digital Rebel XT / EOS 350D Digital / EOS Kiss Digital N. Lexar and
Canon have investigated the cause and confirmed that the problem
occurs in extremely rare instances when the products above are used
together.
http://consumer.usa.canon.com/ir/con...&modelid=10598
Lexar require mailing in the CF card to receive a replacement. For the
RMA visit:
http://www.lexar.com/support/cust_advisory.html
You will need your proof of purchase to obtain the replacement. You
may mail in your card to Lexar to obtain the replacement, or to
receive the replacement before returning your card the charge is US
$10.