MP3 Streaming from Amazon S3


Is there a way to stream MP3s stored on Amazon S3 via a Flash widget embedded in a website, or some other method?

Yes it is. Firstly, you need to create a bucket in your S3 account which is all in lower case, is globally unique and is DNS-compatible; so for example I created a bucket called ‘’.

Then to make it all look nice you need to create a DNS CNAME entry to map a sub-domain of your site to that S3 bucket. That will allow you to access your files you upload to that S3 bucket via ‘’. You do just need to set the ACLs on the files & the bucket to make sure public access is allowed.

Finally, if you want to stream video files via a Flash player from S3 to another domain, you also have to tell Flash that it’s ok for the content to be pulled in from a different domain. Create a file called ‘crossdomain.xml’ in the bucket, with these contents:

<site-control permitted-cross-domain-policies="all"/>

That allows the media to be accessed from anywhere - you can be more specific if you want but this is the simplest approach.

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