In April 4th 2020 Stefan added a new data format that fixes the well known problem with alternating banks being misaligned against 64-bit addresses. (cannot find announcement on this forum. midas commit https://bitbucket.org/tmidas/midas/commits/541732ea265edba63f18367c7c9b8c02abbfc96e) This brings the number of midas data formats to 3: bk_init: bank_header_flags set to 0x0000001 (BANK_FORMAT_VERSION) bk_init32: bank_header_flags set to 0x0000011 (BANK_FORMAT_VERSION | BANK_FORMAT_32BIT) bk_init32a: bank_header_flags set to 0x0000031 (BANK_FORMAT_VERSION | BANK_FORMAT_32BIT | BANK_FORMAT_64BIT_ALIGNED; TMEvent (midasio and manalyzer) support for "bk_init32a" format added today (commit https://bitbucket.org/tmidas/midasio/commits/61b7f07bc412ea45ed974bead8b6f1a9f2f90868) TMidasEvent (rootana) support for "bk_init32a" format added today (commit https://bitbucket.org/tmidas/rootana/commits/3f43e6d30daf3323106a707f6a7ca2c8efb8859f) ROOTANA should be able to handle bk_init32a() data now. TMFE MIDAS c++ frontend switched from bk_init32() to bk_init32a() format (midas commit https://bitbucket.org/tmidas/midas/commits/982c9c2f8b1e329891a782bcc061d4c819266fcc) K.O.