1. If you can plug in a pair of headphones, play an MP3 file and hear
it playing in the headphones, your notebook can supply audio to an
external amp and speakers through this outlet. If the headphone out is
on the DVD player itself, I am not sure whether this will work.
2. If the above does not work, you will need to add sound capability
to your notebook. The best solution for you (which means not having to
get your notebook opened up, or installing some major hardware!) is to
have a USB -compatible solution like the Sound Blaster Extigy.
This is a very good solution by which you not only get very good
quality sound, but also many other features:
i) Surround for DVD through your A/V home theater amplifier
ii) Multiple inputs and outputs - you can connect up your MD player,
for example and transfer digital quality audio through an optical
input/output to and from your computer.
iii) It is an external device - no messy hardware - and is not too
large or heavy to carry with you wherever you go.
3. In any case you will need an "EP (3.5) stereo plug to 2x RCA cable.
Standard length cables are available, but if you need a longer cable
so that you can keep your notebook and audio system in their regular
perches and not have to move things nearer, you will need to get one
made. Any standard Audio equipment store will have the cable required.
You will just have to describe what you want as 'EP (3.5) stereo plug
to 2x RCA cable' and you will get it. If you wish, I can find out if
it is available on the net so you can buy it online.
Please get back to me if you need to know more. In any case, you will
have to do that simple test I have mentioned in point (1.)