rma -f test.rm #try to fix errors in test.rm with default settings(使用缺省设置试者修复文件中的错误)
rma -fb2n1 test.rm #try to fix errors in test.rm, seek two packets back when broken packet is found, only fix first broken packet(在搜索到2个被损坏的块后,只修复第一个被损坏的块)
rma -j/audio.rm//video.rm/ test.rm #join streams from audio.rm and video.rm and write multiplexed stream to test.rm.(合成audio.rm和video.rm为test.rm)