How can I judge WebM video quality for myself?
Download our VP8 SDK, which includes scripts that are preconfigured to get the best out of VP8. The kit includes links to the same files used in our own testing. You can test VP8 decoding speed using FFmpeg and tools in the Chromium source tree (for example, media_bench). Also, playback performance and rendering is not yet fully optimized in the browsers that support WebM but improvements are forthcoming. The computational efficiencies of the VP8 codec are more accurately measured today using codec-level development tools in the SDKs.