The KES-410 laser is a different laser (compared to the KES-400) for the PS3 40GB console. It features two optical readers: one is for reading BLU-RAY and the other for reading DVD/CD.
The True Blue dongle (aka Jailbreak 2) allows booting of the latest the ISO’s (3.6+) from special BD-R discs which can be purchased from all official resellers. The discs can be burned by any BD-R recorder and there are no special requirements on either PC or BD burner types.
Welcome to the era of the True Blue for your PS3 which enables all your Jailbreak dreams and needs!