CHICAGO (MarketWatch) -- Netflix Inc. NFLX, +1.32% said Tuesday that it would no longer offer unlimited plans that include both streaming and DVDs by mail. Users must now either subscribe to a stream-only plan, a DVD-only plan, or a combined plan. The unlimited streaming plan will remain at $7.99 a month. The price for obtaining both unlimited streaming and unlimited DVDs will be $15.98 a month ($7.99 + $7.99). For new Netflix members, the changes will be effective immediately. For existing members, the new pricing will start for charges on or after September 1. "Netflix members love watching instantly, but we've come to recognize there is still a very large continuing demand for DVDs by mail," said Andy Rendich, chief service and operations office for Netflix. "By better reflecting the underlying costs and offering our lowest prices ever for unlimited DVD, we hope to provide a great value to our current and future DVD-by-mail members." Netflix founder and Chief Executive Reed Hastings has said for some time that the DVD market would exist for at least another decade. Not every title available on DVD or Blu-ray is yet available for streaming, particularly older library titles of a type preferred by many of Netflix's core customers.