My goal is to get an MP4 file that my XBox 360 can read. Currently, using MP4Box does not produce a file that my 360 can read, but using Videora Xbox 360 Converter makes a readable one. The problem is that this does not contain any subtitles. I used GSpot and noticed some small differences between the one on the the MP4Box file (left) and the Videora Xbox 360 Converter file (right). Image For the MP4Box I do this: 1) Use MKVExtract to get: - title.h264 - title.aac - title.ass 2) Use H264 Info to change the level to 4.1 3) Use Subtitle Workshop to convert title.ass to title.srt 4) Use MP4Box like this: mp4box.exe -add title.h264 -fps 23.976 -add title.aac -add title.srt -new title.mp4 The Videora Xbox 360 Converter profile I use is listed as: H.264 720p 3072kbps Stereo/160kbps I know that there are slight differences, but I am not sure if I can add some lines into MP4Box so that I can get my output to match the output of the Videora Xbox 360 Converter. Any help would be great because I am thoroughly stuck!