Subtitle Mechanic can synchronize subtitles in SubRip or MicroDVD format with the movie.

Subtitle Mechanic is portable, and you can select your file(s) with the File button or by dragging and dropping into the program window.

Options allow you to autosave, auto backup, text encoding in numerous languages, set a default frame rate as well as the ability to turn on or off tips, and delay controls. You can then choose to sync by hours, minutes, seconds, and even milliseconds.

Subtitle Mechanic fills an interesting niche with plenty of settings to synchronize your subtitles perfectly right down to the millisecond.