Storage designed around how live video actually behaves, not how ordinary files behave.

AWS Elemental MediaStore is a storage service designed specifically for live and time-sensitive video workflows. Live video is typically broken into many small chunks, called segments, each covering just a few seconds of footage. These segments are written constantly by an encoder and must be read back almost immediately by packaging or delivery systems, over and over, until the segment is no longer needed. MediaStore is built and tuned specifically for this rapid, repeated pattern of writing and reading small video files.

This distinction exists because general-purpose cloud storage is often optimized for durability and long-term retention of larger files, rather than the extremely high-frequency, low-latency read-and-write pattern that live video segments require. MediaStore fills this specific gap, acting as a high-performance storage layer purpose-built for the unique rhythm of live streaming.

Every second of delay in live video is a second viewers notice, so the storage layer underneath must keep up.

Live video is unlike almost any other kind of data. A live encoder might produce a new two-second video segment roughly every two seconds, forever, for as long as the broadcast continues. Each segment must be written extremely quickly, and then read back — often by many different downstream systems at once — within a very short window, sometimes just seconds, before the next segment is already being requested.

If the storage layer underneath a live video system is even slightly slow to respond, viewers experience buffering, stuttering, or increased delay between the real event and what they see on screen — something that is especially noticeable and frustrating during live sports, breaking news, or interactive broadcasts. AWS Elemental MediaStore was built specifically to remove this bottleneck, offering storage performance tuned for exactly this kind of workload.

From an encoder producing fresh segments to those segments being served back out at speed.

flowchart TD
    A[Live encoder produces short video segments] --> B[Segments are written into a MediaStore container]
    B --> C[MediaStore stores segments using high-performance, low-latency storage]
    C --> D[Packaging or delivery systems request the latest segments]
    D --> E[MediaStore quickly serves segments back on request]
    E --> F[Old segments expire automatically based on lifecycle rules]
        

The Write Step

A live encoder, such as AWS Elemental MediaLive, continuously writes new video segments into a MediaStore container as the broadcast progresses. Each write is designed to happen quickly, so the segment becomes available almost immediately after it is created.

The Read Step

Packaging systems, such as AWS Elemental MediaPackage, or other downstream services, request these same segments almost as soon as they are written, in order to package and deliver them to viewers. MediaStore is optimized to handle this rapid, repeated read pattern without slowing down.

The Lifecycle Step

Because live video segments are usually only needed for a short window of time, MediaStore supports lifecycle policies that automatically delete old segments after a set period, keeping storage usage efficient and avoiding the buildup of segments nobody needs anymore.

The Access Control Step

MediaStore also supports fine-grained access policies, so only specific, authorized systems and users are permitted to read from or write to a given container, protecting the live video pipeline from unauthorized access.

Every feature is aimed squarely at making live video storage fast, reliable, and manageable.

Following a single video segment from the moment it is created to the moment it disappears.

MediaStore is one piece of a larger puzzle, working closely with other specialized services.

MediaStore excels at a very specific job, and understanding that focus helps decide when to use it.

Designed to stay fast and steady, even when millions of viewers tune in at the exact same moment.

Because MediaStore is a fully managed service, it automatically maintains the fast, consistent performance live video demands, without requiring manual capacity planning. Whether powering a small local broadcast or a globally watched event with a sudden, massive spike in viewers, the underlying storage layer remains reliably fast, letting downstream packaging and delivery systems keep pace with the live action.

MediaStore quietly supports the split-second reliability behind many live broadcasts.

Small configuration choices can make a big difference in live video reliability.

How experienced teams structure a live video pipeline around MediaStore.

MediaStore is specifically tuned for the fast, repeated read-and-write pattern of live video segments, while general-purpose storage is optimized more broadly for durability and long-term retention of larger files.

Not typically. MediaStore is best used for active, short-lived live video segments, while finished, long-term assets are usually better suited to general-purpose storage services.

MediaStore is typically used alongside other services, such as an encoder like MediaLive to write segments, and a packaging service like MediaPackage to read and prepare them for delivery.

You can configure lifecycle policies that automatically delete segments after a set period, ensuring storage stays efficient and does not accumulate content that is no longer needed.

Yes. MediaStore supports fine-grained access policies, allowing you to control exactly which systems or users are permitted to read from or write to a given container.

While large broadcasters benefit significantly from its performance at scale, any organization running live video workflows that need fast, reliable storage can use MediaStore.

AWS Elemental MediaStore fills a specific, easily overlooked gap in live video infrastructure: the need for storage that can keep up with the extremely fast, repeated read-and-write pattern of live video segments. By offering low-latency performance, automatic lifecycle management, and fine-grained access control, MediaStore acts as a reliable origin storage layer between encoders and packaging systems, helping ensure that live broadcasts reach viewers smoothly, without unnecessary delay, even during the busiest and most demanding live events.