Cluster size for video editing?

[thefiddler]

I'm formating the partitions in my new laptop. I separated 40gigs into one partition for only video editing purposes. I was just wondering what people thought was the optimum cluster size for a drive this size being used for video editing (which means most files will be relatively large). I understand that the larger the cluster the faster the read/write, but you sacrifice space because it isn't used effeciently. So I was wondering what a good trade off was?

thanks in advance for any input.

[Marty2003]

I personally have my video drives at 64K and my windows partition at 4K. I find 64K fince since I only ever have a few large files on the drive.

[thefiddler]

I can go much higher than 64k. would there be any reason to?

And is there a way to tell what size a drive was already set at? I'm just curious what windows disk management set it to when left it "default" (don't worry there's nothing on it yet so I can still set it to what I want.