Various Topics on HDD

.... ..rch..

I am writing an application that processes a large data file one
sample at a time. Of course, I will buffer input and output data to
minimize disk access. My question is, what would be the optimum
buffer size to read from and write to an NTFS disk? How about HFS+?

I searched for this, but only found info on defragmenting.

Thank you,
Greg