Our current policy is that the files in your Live365 library will remain intact for a period of 60 days after you cancel your broadcaster subscription, or fail to pay your bill. If you start up your subscription again within that 60 day period time, you will find all those tracks still in your library.
If you have a special request for your library to remain in intact for longer than the allotted 60 days, please contact the Live365 support team: support@live365.com