ffdshow plays everything except the 2 mentioned above though and won't cause any conflicts.
Its also very handy if you want to change any setting or do post processing or change aspect ratios.

codec packs arent bad if u choose wich codecs you want to install with them...

Its instead of using codec packs, it does the same thing though.
It'll play anything except quicktime and real media.

What's that?

Don't dl any codec pack.
Codec packs are bad.
Dl ffdshow.

It's built into the motherboard.

Where do I get this codec pack you speak of?

what sound card is it?

d/l k0lite codec pack and newest soudcard drivers, use driver cleaner to delte frivers not control panel

There is no jack on the drive so it's through the sound card.

If I delete the driver in Device Manager and reboot, will it give me the option to check the Internet for latest drivers etc.? It's been a while since I done any PC troubleshooting in Windows, I forgot what Windows says when it finds a new device etc. (Win XP anyway)! :lol:

Its not the drive because if its reading the video it has to be able to read the audio too.
I'd say a driver or codec issue.

is he lisening threw the sound card or the jack in the cd drive?

Also it doesn't matter whether he uses Media Player, Real Player or anything else to watch the DVD, there's still no sound, so I'm thinking maybe it's device driver or hardware related?

On my brother's computer, he has an Asus DRW-1604P CD/DVD combo writer drive.

He can burn and read CDs and DVDs fine, and listen to audio CDs fine, however if he tries to watch a DVD the picture is fine but there is no sound? Doesn't matter whether they are normal DVDs or copies.

Is the drive broken do you think? DVD sound worked once upon a time but hasn't worked for a few weeks now, and he says he hasn't installed anything new on the computer that might have affected it...