On: Amazon S3 now supports the ability to append data ...

[msoad]

Does it really work for livestreams? Can I stream read and write on the same video file? That is huge if true!

Edit: oh it’s only in one AZ

[jrpelkonen → msoad]

Livestream is not usually done by writing to/reeding from a single media file. Instead, the media is broken into few second long segments. The current set of segments are indicated by a HLS and/or DASH manifest, which is updated as new segments appear.