What is correct buffer size in iTunes?

I'm going to save my cd collection to my computer HD using iTunes in Apple lossless format. iTunes gives me the choice of 3 buffer sizes - small, medium and large. Does it matter which buffer size I select? Of course, I want to maximize sound quality? HD is one terabyte, so space is not an issue.

Thanks in advance.
The buffer size you refer to is for playback audio and video streamed from Internet. It has nothing to do with ripping CD or playing back music from HD.
Sidssp - thanks much!
A large buffer size will mean you are less likely to suffer from dropouts due to momentary bandwidth restrictions...