An anonymous reader writes "GamePolitics reports that the Postal Regulatory Commission has ordered [PDF] the U.S. Postal Service to equalize the rates paid by mailers who send round trip DVDs, and concluding (sort of) a dispute that has been underway for more than four years. The new postage rates take effect on September 30th. Some mailers, prominantly Netflix, send their round-trip movie DVDs as 'letters,' but GameFly's gaming disks are sent in slightly bigger envelopes as 'flats' to avoid breakage, and so GameFly has paid a much higher postage rate. GameFly argued that this was unfair discriminatory treatment because USPS was providing special hand-sorting treatment for Netflix disks without charging Netflix for the extra handling. But now there's a new twist: the Postal Service wants to reclassify DVD mailing [PDF] as a competitive product, where the prices would not be limited by the rate of inflation, because it says that mailed DVDs compete with the internet, streaming services, and kiosks such as Redbox. The regulatory agency is accepting responses [PDF] from interested persons until September 11th to the Postal Service's latest comments on its request [PDF]."