Blu-ray Forum - View Single Post - DVD on Blu-ray player = reduced life span?

FF750 · 01-23-2007, 02:51 PM

I was checking out a PS3 message board when someone asked the question of whether playing non-BD disks (i.e. CD or DVD) in a PS3 would shorten its life span. Several people answered that it will, either citing anecdotal experience with PS2s supposedly not reading DVDs well after being used for CDs a lot or saying something obscure about the different media putting more strain on the system by requiring different focal lengths.

I'm no expert but this didn't make sense to me. How should using a medium designed for a larger wavelength laser be damaging to a player designed for a shorter wavelength? The shorter wavelength blue laser should be able to read the pits on a CD or DVD with no problem right? The way I understand it the laser remains the same wavelength regardless of medium. I don't understand why it would even need to change. And since the basic design is identical then there shouldn't be any more strain on the motors controlling the laser and disc drive right?

At least thats what I think but I'm not an engineer. Can anyone either debunk or give credence to this with a good explanantion?

I hope this is the right part of the forum for this question but sorry if it isn't.

01-23-2007, 02:51 PM	#1
FF750 Active Member Member since:Jan 2007	DVD on Blu-ray player = reduced life span? I was checking out a PS3 message board when someone asked the question of whether playing non-BD disks (i.e. CD or DVD) in a PS3 would shorten its life span. Several people answered that it will, either citing anecdotal experience with PS2s supposedly not reading DVDs well after being used for CDs a lot or saying something obscure about the different media putting more strain on the system by requiring different focal lengths. I'm no expert but this didn't make sense to me. How should using a medium designed for a larger wavelength laser be damaging to a player designed for a shorter wavelength? The shorter wavelength blue laser should be able to read the pits on a CD or DVD with no problem right? The way I understand it the laser remains the same wavelength regardless of medium. I don't understand why it would even need to change. And since the basic design is identical then there shouldn't be any more strain on the motors controlling the laser and disc drive right? At least thats what I think but I'm not an engineer. Can anyone either debunk or give credence to this with a good explanantion? I hope this is the right part of the forum for this question but sorry if it isn't.