Windows XP and playing DVDs

[Zeitgeist]

I have Windows XP SP3, and an external DVD R/W drive connected via USB. It's a Sony DRU503A if that's helpful. Shouldn't I be able to play DVDs? It's working, in large part, that is it's listed in My Computer as a DVD R/W drive, but when I put a DVD in there, nothing happens, and if I explore it, no files show up, nothing. I've tried a couple DVD movies, all same result.

Perhaps I need to download a DVD codec package? I did download the multimedia codec package Veks supplied, but I don't think that helps me really. I have both Windows Media Player, and VLC, neither seem to see the disc.

Thoughts? Ideas? Thanks.

[Vekseid]

Well this is their firmware page: http://sony.storagesupport.com/product/106#drivers

[Zeitgeist]

Well this is their firmware page: http://sony.storagesupport.com/product/106#drivers

Thanks. I should have mentioned I was there yesterday and updated firmware, though that didn't seem to have any effect. I'll nose around there some more.

[Vekseid]

You might need to use the actual PowerDVD software provided by the manufacturer.