> Not trying to constrain your design choices, just sharing > my limited knowledge. Thanks again I hadn't realised there were so many issues, technical and commercial. I suppose I should be grateful that I wasn't embarrassed by product coming back SDHC seems to have at least a whiff of the dodgy battery market Joe ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5751 / Virus Database: 4306/9326 - Release Date: 03/17/15 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .