"I have a bunch of .webm files that I would like to edit using Adobe Premiere CC, but cannot open them. Is this possible? and if not can we please have a patch to allow this ubiquitous format to be used?"
WebM is an open web media project headed up by Google, aimed at developing "a high-quality, open video format for the web that's freely available to everyone." However, it's only for HTML 5 websites to stream videos online and few portable devices and players currently support playing this kind of files. Normally, you can't directly import a WebM files to Adobe Premiere Pro for editing. Fortunately, there are two easy ways to fix the problem. Read on to learn more.
Solution 1: Download free Premiere Plugin for WebM
This is a free way to get Adobe Premiere working with WebM files. If you're editing WebM files with Premiere Pro CS6, chances are you already installed this great free WebM open movie plugin for Premiere. If not, download it from this site.
Designed with video professionals in mind, the plug-in exposes more advanced VP9 features such as 4:4:4 video sampling and 10/12-bit pixel buffers. For minimum clutter, only the most important encoding parameters have interface controls, while dozens of other settings can be adjusted using the custom arguments text field.
Solution 2: Convert WebM to Adobe Premiere Editing-Friendly Formats
It's great for us to get the free plugin for Adobe Premiere to support for Google's WebM video format. But the plugin doesn't just add WebM support to Premiere Pro CC. If you're using a WebM file in Premiere Pro CC, the easy workaround is to convert WebM to Premiere Pro CC compatible video formats such as MPEG-2. It might be a bit time consuming but it works.
To convert WebM to Premiere Pro CC, you can adopt EaseFab Video Converter for Mac for help. By running it, there's no need to set the codec yourself: the program has optimized presets for Adobe Premiere (Premiere CC included). You can convert any video file to Adobe Premiere compatible format without loosing quality. If you're using a Windows PC, please turn to the Windows version.
Simple steps to convert WebM to MPEG-2 for Premiere Pro CC
Step 1. Import WebM videos
Install and run the WebM to FCP Converter on your Mac, then run it. Click on "Add Video", and browse your files, select all the WebM files you wanna convert. This application supports batch conversion, so you can add more than one file at a time.
Step 2. Select output format
Click "Profile" pull down list to select "Vegas/Premiere (MPEG-2)" as the best video format for Premiere Pro. WMV, MOV formats are the good choice as well.
Tip: If you would like to customize the video and audio parameters, you can click "Settings", adjust the parameters as you want, like Video Codec, aspect ratio, bit rate, frame rate, Audio codec, sampling rate, bit rate, channels.
Step 3. Start transcoding WebM files to Premiere
Finally, click "Convert" button to start transcoding WebM video to MPG for importing to Premiere Pro CC.
When the conversion task is finished, click "Open" button to get the exported files and then import the converted WebM files into Adobe Premiere Pro CC to do further editing.