DVD Player Error Message on Macbook

I tried loading a DVD onto my Macbook and i'm getting an error message that says DVD encountered a system error nilP i've never seen this before? I've tried other DVD's and i get the same error message. Has anyone ran into this?

i'm on version 10.5.8 with 1 GB of ram and my model identifier is MacBook 2,1

i'm using the internal optical drive, I'm unsure how to get to VLC Player ?

simsaladimbamba said:

What exact MB with what exact Mac OS X version do you use?

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Identify your Mac and Mac OS X version, visualised in a more elaborate image
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Do you use an internal or external optical disk drive (ODD)? Have you tried opening the video DVD in VLC Player yet?

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simsaladimbamba said:

Never heard of VLC Player?

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They do play by using VLC. I'm just unsure why i get an error when i first put the disc in.