Altera Corporation Dissemination Conflicted

Altera Corporation (Nasdaq:ALTR) appears to be dissemination conflicted. On Nov 28 they announce live investor meetings on Dec 5 and 6 beginning at 3:00 pm and 2:00 pm respectively. The meetings will be live webcast while the market is open and trading. Altera also announces that on Dec 5 after market close they will release additional guidance, which they did. The press release starts of with some guidance and then refers the reader back to the already in progress webcast for additional details. Where does the investor go for the complete picture? Was there any substance to the webcast? If not why have one? Dissemination needs to be co-ordinated and complete. Investors should not be scurrying from one form of media to another especially during live trading. Altera could you please say something about what you were trying to do here?