TS (MPEG transport stream)
Also known as: .ts file, transport stream, how to open ts video, MPEG-TS
TS (MPEG transport stream) is a container built for broadcasting and streaming, where video is split into small packets that can survive transmission errors. It is used by digital TV and HLS streaming, often as many .ts segment files.
- Container for broadcast and streaming
- Splits video into error-resilient packets
- Used by digital TV and HLS segments
Built for broadcast and streaming
Unlike a file format meant to sit on a disk, the transport stream was designed to be sent over the air or a network. It chops audio and video into small fixed-size packets so a player can start mid-stream and recover if some packets are lost — exactly what live TV and internet streaming need.
TS commonly carries MPEG-2 or H.264 video. You will see it in digital TV recordings and especially in HLS streaming, where a video is delivered as a playlist pointing to a series of short .ts segments.
The storage angle
A downloaded stream often arrives as dozens or hundreds of small .ts segments plus a playlist. These can be joined and remuxed into a single MP4 without re-encoding, which is tidier to store and easier to play.
Because TS packetizing adds overhead, converting to a clean MP4 can slightly reduce size and consolidates many fragments into one manageable file.