Spectrographic analysis of the Blu-ray laser diode in The Laser Box V2.1 (TLBV2.1) (Blu-ray Violet Laser)
Wavelength (peak value) appears to be ~407.5nm, which is within specification for this laser diode.
This thread has become quite large and will be closed. The_LED_Museum may start a new thread or since the same information is already in the reviews, he may just want to use that one directing members to his reviews. We'll let The_LED_Museum use his best judgment to make the call.