This is just a quick heads up for everybody who uses the /youtube/store
Instead, you will now need to enable 2-step verification and use an application specific password for the
password parameter. For the
username parameter, please use the email address of your Google account instead of your YouTube username.
We made all the necessary changes on our end to accommodate the new API requirements.
Here is a video that shows how to enable 2-step verification and application-specific passwords: http://www.youtube.com/watch?v=zMabEyrtPRg