Merge VOBs to MP4 with Subtitles

I have five consecutive VOB files ripped from a DVD. All I need is a single MP4 that plays straight through from start to finish. Requirements • Combine the five VOBs in the correct order without trimming or extra edits... (Budget: $30 - $250 USD, Jobs: Audio Editing, Audio Services, Video Editing, Video Post-editing, Video Processing, Video Production, Video Services, Video Streaming)