Thanks for your reply but I do read to status register of the EE before initiating another write. I am also writing 6 bytes at a time and its only every 32 bytes that the first 2-4 bytes get overwritten. I can write a full 2K block (6 at a time) and every thing is correct except every 32 bytes there is 2-4 bytes overwritten. I have tried putting in delays in excess of 20ms between every 6 byte write with the same result. ?