MFp4: Don't fix the size at 8k, and some minor cleanups.  andre@ contributed       to fixing this problem.
MFp4: Don't fix the size at 8k, and some minor cleanups.  andre@ contributed
      to fixing this problem.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase