My sony mp6 AN- 829 is shown as unknown USD device by my computer

I have had problems in the past with some Mp3 players including Ipod and Iphones not recognized by some motherboards and I found that even with the latest drivers not all USB plugs work as they should be, either USB 1 or USB 2, for example recently in my ASUS motherboard, (though my ASUS mobo is a few years old) it does have USB 2 but my Ipod and my sister's Iphone were not recognized by it and what I did was to buy a USB card with a couple of external connectors and I installed this in my PC and installed the Windows XP drivers that came with it. When I pluged my Ipod and my sister Iphone they were recognized inmediately and they have not given me a problem ever since. You know, what happened is that even though this card is just another USB 2 connector card it's manufactured by somebody different than the motherboard maker and it has different drivers. For one reason or another my Ipods and my sister Iphone were not recognized by my mobo and it's USB drivers even though most other USB 2 devices work without a problem. Those USB 2 cards are very cheap now, you can get them for about $8 to $12 in some places and that may solve your problems. I'm not saying that this is a sure fire way of solving the problem cause there may be other reasons but for a lot of people this can work and they wont have to go crazy wondering if their devices are damaged, if that's the case they can go to the store and ask for a replacement or have them fixed by the factory but before doing that it may be wise to check if your device is recognized by somebody elses computer first, if that's the case then this may be a solution for you.