У вашего броузера проблема в совместимости с HTML5
Here In this video you will come to know how to reduce the file size by using adobe premiere.
Adobe Premiere Pro lets you easily create videos that can be exported to the Web or to mobile devices.
To export your project, click on the sequence and select File- Export - Media.
In the Export Settings dialog box, you can choose the most optimal file format, frame size, bit rate or ready-made presets for faster upload time and better playback quality.
Here are a few tips to help you choose the most optimal settings.
Follow these guidelines to deliver the best quality video for broadcast over the Web.
Know your audience data rate
When you deliver video over the Internet, produce files at lower data rates. Users with fast Internet connections can view the files with little or no delay for loading, but dial‑up users must wait for files to download. Make the clips short to keep the download times within acceptable limits for dial‑up users.
Powerful video compression engine implements the most advanced video compression algorithms to provide the highest quality / file size ratio.
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