// Check the filesize
fseek(m_pFile, 0, SEEK_END);
len = ftell(m_pFile);
fseek(m_pFile, 0, SEEK_SET);
if(len % m_chainsizebytes > 0)
{
// Check the filesize
fseek(m_pFile, 0, SEEK_END);
len = ftell(m_pFile);
fseek(m_pFile, 0, SEEK_SET);
if(len % m_chainsizebytes > 0)
{