Hi, I have the same problem, still getting 401 - Unauthorized. I checked the response header but didn't find "x-opensocial-error". The request URI I tried is: http://opensocial.myspace.com/roa/09/mediaitems/@me/@self/myspace.com.album.1398571?caption=TEST&oauth_consumer_key=b10b96560d5344b189b8579f0884ec8c&oauth_nonce...