Ideal cluster size for 300GB media drive?

I just put a shiny new Seagate 7200.9 300GB SATA2 HDD in my home theatre PC to be used purely as a media storage drive. I'm making the whole thing one partition of about 280GB and since all I'll be storing on it is large files (AVI's, MPG's DVR-MS files from recorded HDTV, etc) most of which are going to be 100's of MB in size (at least)... so can anyone recommend what "allocation unit size" (used be called cluster size) to use during formatting to get the best performance out of this drive?

TIA...

Mike

I always use the biggest possible.

Depends on what you're going to store. Larger cluster sizes will result in faster read speeds but will cause a lot more wasted space. It really doesn't matter a terrific amount. With big movies and such I would go ahead and use a large cluster size.

for large file date storage I would go with the largest.

You definitely want to use the largest option. And you'll want to use NTFS of course.