# Proxy files
Proxy files

 When a new video is uploaded to Amazon S3, the Media2Cloud on AWS solution automatically converts the video to MP4 format and creates a compressed version of the video known as a proxy file. For this solution, proxy files are used to allow users to upload videos of various sizing and formatting, without being subject to Amazon Rekognition and Amazon Transcribe quotas. Additionally, the proxy files can be used as reference proxies in a Media Asset Manager (MAM) for search, discovery, and [proxy editing](https://en.wikipedia.org/wiki/Offline_editing). The solution also generates compressed proxies for audio, images, and documents after extracting technical data from these file types during the ingestion process.