TSsplitter has had a joining M2TS file problem, if you join more than 4 files:
join 4 files, another 4 files, another 4 files, and another 4 files, then join the results of THOSE 4 files, and the M2TS file will be the CORRECT length. Becareful to put the files in the correct sequence.
join 4 files, another 4 files, another 4 files, and another 4 files, then join the results of THOSE 4 files, and the M2TS file will be the CORRECT length. Becareful to put the files in the correct sequence.