PlayStation 3:

Since June 2009 VidZone has offered a free music video streaming service in Europe, Australia and New Zealand. In October 2009, Sony Computer Entertainment and Netflix announced that the Netflix streaming service would also be available on PlayStation 3 in the United States. A paid Netflix subscription was required for the service. The service became available in November 2009. Initially users had to use a free Blu-ray disc to access the service; however, in October 2010 the requirement to use a disc to gain access was removed.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". In October 2010, the requirement to use what was installed?
unanswerable