I just called Lexar and was told…
1) Yes, using the firewire 800 card reader has probably already corrupted my 1000 speed lexar cards. Even though they continue to work fine for now.
2) Order the new card reader that is USB 3.0 and most importantly supports UDMA 7.
3) All card readers ordered directly from LEXAR will be REV E (revision E?). This (latest) revision addresses this latest card corruption issue.
4) Yes, I can order it from B+H for $15 cheaper and if it does not have "revE" printed in the serial/model number I can update it's firmware for free directly from
www.lexar.com.
5) I can then also repair my 1000 speed cards using my new and updated card reader.
6) This will make my cards new again and remove any data corruption that is skulking on my cards.
7) The cards affected include all the 800 speed and up.
He also explained that the issue was that the new cards are sending info faster than the reader can process it. The reader then sends some of the overflow data back onto the card. (The new reader can manage the data properly with the buffer.) This is the corruption source and evidently if left unfixed it is a time bomb. While I agree that any card can fail at any time, I will be thwarting this cause by ordering the new reader and following the lexar update instructions.
8) I did not ask for a link to do the updates/repairs on the new reader (if necessary) and the cards. I told him that I would call when I had my new card reader.