No idea how to test cards other than by using them or using a volume/file system testing application.
But general wisdom is to always format your cards in the camera that's going to use them, not the computer that will be used to upload the files. I have a ton of old cards from 2004-2007 too, but I don't worry about them. Or use them much any more. Six 32G SDHC cards bought today will hold more than all those old cards put together, cost less, and are much faster. And more reliable. Godfrey > On Nov 25, 2013, at 10:47 AM, Bruce Walker <[email protected]> wrote: > > but here's a suggestion. Be > sure to hard-format each card in the computer you will be unloading > them with. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.

