So much for a spring debut. Sony ( SNE) plans to delay the launch of its upcoming PlayStation 3 until November, according to a published report. Sony decided to postpone the PS3 because of an issue with the Blu-ray DVD format, The Nihon Keizai Shimbun reported on Tuesday. The various electronics and movie companies pushing the next-generation DVD format have fallen behind schedule on agreeing to a technology standard to prevent unauthorized copies, the report noted. The ability to play Blu-ray DVD discs is expected to be one of the key features of the PlayStation 3. Many analysts expect the PlayStation 3 to help drive adoption of the new disc format by being the least expensive Blu-ray player on the market when it launches. The company will hold its annual meeting with PlayStation game developers on Wednesday in Tokyo, according to published reports. Some analysts have speculated that the company will officially announce the delay there. Kimberly Otzman, a representative for Sony's PlayStation group in the U.S., declined to comment on the Nihon Keizai Shimbun report or on what Sony might announce at the meeting. Blu-ray discs are expected to hold 8 times as much data as conventional DVDs, allowing content vendors to sell movies in high-definition format. But filmmakers and other content creators have been pushing for enhanced copy protection on next-generation DVDs to prevent piracy. Current DVDs use encryption schemes that are easily broken, which content owners argue has or could hurt sales. Rumors have been swirling in recent weeks that Sony will delay the PlayStation 3. Although the company had previously predicted the device will launch this spring, it has not given any more definite launch plans such as the actual date of the release or how much the device will cost at launch.