QUOTE(whufclee @ Sep 24 2009, 03:51 AM)

I also had about 50gb short of 1Tb with my WD10EADS Green HDD but I can live with that - tried having 32 clusters spread over F:& G: then tried 64 clusters with just one big drive F: but still the same.
The hard drive manufactorers would have you believe that 1tb = 1,000,000,000,000 bytes. According to the SI standard, they'd be right.
However, computers don't use the SI standard for measures of storage capacity. Instead of changing units every 1,000 bytes, they do it every 1,024 bytes (two to the power of ten - an easier number for a binary based system to handle).
So 1tb = 1,099,511,627,776 bytes.
And 1,000,000,000,000 bytes = ~930gb.
Cluster size won't change these figures: That just affects how efficiently the space gets used. The same amount of space effectively holds less data as you crank the cluster size higher and higher.