TrueHD AC-3 interleaver
thdmerge (version 1.2) is a program that interleaves TrueHD streams with AC-3 frames for playback-compatibility with hardware Blu-Ray players.
Author = Donald Graft (donald.graft@cantab.net).
USAGE:
thdmerge input.thd input.ac3 output.thd+ac3 [-t]
-t: truncate longer stream to length of shorter stream
NOTICE:
input.ac3 can be a silent and mono stream;
the ac3 bitrate must be equal to or greater than 64 kbps.