Don't get me wrong, I think Vimeo has ever right to clean-up huge files which are hardly used. I have a pro account on Vimeo and have been pleased with their upload speeds - better than Youtube.
Starting August 1st, basic accounts' original source files will be stored for one week from the upload date, after which they will be removed. Of course the converted Vimeo video will always be there in the Vimeo player, ready to be watched again and again, anywhere you choose to embed or share it. We will also still provide a download link so people can save the converted file to their computer (in MP4 format).
This new one-week policy applies to all basic accounts' videos uploaded from this point onwards. For videos that were uploaded before this blog post, those original files will be available until August 1st, to give you some time to download them if you need to. After August 1st, those files will also be removed.
For Plus users nothing will change: we're going to continue hosting your original video source files for both your existing videos and any new videos you upload. We appreciate your support, and we want to continue improving the Plus service, not limit it. If you choose not to renew your Plus service, we'll keep your original videos for one month past the end of your subscription to give you time to download your videos or decide if you want to renew. Additionally, if a basic user upgrades to Plus within the one week window after they upload a video, that original file will be kept as long as they are a Plus member.