This past year I suddenly found my scanner was no longer reading bar codes at all. Even though I knew there was a switch in Comic Base using CODABAR system to Code 2 of 6, I was having issues, which I thought were the scanner. They were not. The scanner works just fine. It never occuurred to me that ComicBase would wipe out all the original CODABAR codes.So now my 20,000 books all labelled under the old system, need new labels for me to process any sales. While I underdstand the need to use the new bar codes, I an surprised they would not just leave access to the old ones as well, much like the UPC bar codes are there.