Assuming the following: The browser in question doesn't limit the size of data URIs. There is actually a purpose to doing this (so please refrain from asking "what's the point?" and "you do realize base64 encoding will expand your file by 33%, right?"). Is it technically possible to encode an entire video or audio file into base64, and embed it in an HTML document using either <audio> or <video>?
![Is it possible to use data URIs in video and audio tags?](https://cdn-ak-scissors.b.st-hatena.com/image/square/98d6f053a97a87156775f60757c60865d0f2c47d/height=288;version=1;width=512/https%3A%2F%2Fcdn.sstatic.net%2FSites%2Fstackoverflow%2FImg%2Fapple-touch-icon%402.png%3Fv%3D73d79a89bded)