Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Is it windows 8 compatible?
Document: I bought this product hoping to download my old 8 mm tapes into my computer to create DVD's but it appears my SONY digital 8 camera is not compatible with either: this product or my new Toshiba 64 bit computer with System 7 or a combination. I sent it back and got my refund and it was not a problem. Otherwise it appears to work just fine, no too much to go wrong here.
I have a Sony digital 8 camera that Sony has not maintained the USB drivers since XP. It does however also work with firewire. This product at $10, including shipping appeared questionable considering the number of other entries at many times the price. It installed automatically and work flawlessly on my system, windows 7, professional, 64 bit.An excellent bargain
For the low price (less than $10 including S/H), it arrived on time. It works like a champ out of the box, true plug-n-play with Windows 7 laptop. It came with a foor-long Firewire cable. What a generous bundle for a cheap price. I used it to transfer Hi-8 videos from my old FireWire-equipped SONY camcorder. The AVI videos look perfect as expected.
I purchased this, as it was the least expensive device on Amazon. Unfortunately, the chipset in this device was not compatible with my Presonus Firewire Studio. If you are looking for same application, the VIA chipset will not work.
Inserted it into my old Acer 8920G laptop, 1.8 GHZ Core 2 running Vista, plugged in Firewire cable from my Canon HV20 HDV tape camcorder, and was transferring video within 5 minutes of opening package. Computer recognized card and camera with no problems. As others have said, this was the cheapest card on Amazon at the time, so I had some concerns, but it was fine.
While most video and audiophiles will recommend only the Texas Instruments chipset driven firewire products and ports, I have to say that I was pleasantly surprised by this VIA chipset card. I plugged it in, saw the VIA name in the device description, and groaned. I went ahead and tried it with my HD camcorder, and VIOLA! it worked without a hitch. For the price, I'm very pleased. Highly recommended by me! 8)
I bought this to download my videos from a camera with firewire. I don't have an expansion slot on my laptop, so I ordered the usb express card adapter as suggested by amazon (customers who bought this item, also bought this one.) Unfortunately the two are not compatible. If you have an expansion slot on your computer, it may work fine, but don't try it with an adapter.
I plugged this into my Windows 7 notebook computer and was transferring video from my DV camera in just a few seconds. I have had no problems with this card.
This product was totally plug and play with my Lenovo notebook running Windows 7. I was downloading video within minutes of opening the package.
Failed to work in Windows 7 on a firewire drive that worked fine on a Macintosh. Wish I could return it but time has expired. Also, shipping was a little slow.
Answer: I took a leap of faith and purchased it for my laptop running Windows 8.1.  It seems to work fine so far.  The toughest part was finding a good video capture program for Windows 8.  Windows Movie Maker 2012 gets the audio out of sync with the video.  I was worried it was the ExpressCard doing it, but I tried another freeware capture program and it was fine.