Marechiare wrote: > I think you are over-reacting. The checksum and the self-check code > could be included into the uploaded image Then you're screwed if the self-check part of the upload image got corrupted. Also, this guy clearly didn't have any checking. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .