NI-DAQmx out of memory error with PCIe-6536

[DanBishop]

When testing a NI-DAQmx task I get the error - "Not enough memory to complete this operation".
 
The device I am using is a NIPCIe-6536
with task settings :
 

DigitalIn on port0_16
Acquisition Mode : N Samples
Samples to Read : 32768000
Rate(Hz) : 16M
 
Is the error related to the amount of RAM in my development machine (512MB)?
or should I be looking at collecting the data in smaller chunks?

[DanBishop]

Ok  I seem to have answered my own question.
 
I have been examining the task manager whilst changing the number of samples and have come to the conclusion that to do what Im trying to do I need 1-1.5GB RAM. This seems to be partly due to the fact that even though I am reading in 16bit values, they are stored as longs, and transformed as doubles.