Please donwload SegyMerge binary file from link below. If you have another request for your operating system, you can request from request link or use the source code link below and compile by yourself. Read Build Source link to give tutorial how to build SegyMerge source code.
SegyMerge v1.1 Download Link :
Windows 7 and newer
Ubuntu 14.02 32 bits (only binary)
Mac OS X 10.9 (only binary)
SegyMerge Console Source Code