#62 Move data in bigger chunks than 256k

[Joachim Otahal]

If you are gonna drop Win2k in version 6 (which does make sense, everyone abandoned win2k now), move the data in larger chunks dependent on drive speed.

For the "automatically set best size" option I'd simply go by the size of the drive (NOT partition, the DRIVE size), since the available drive sizes loosely corresponds with the available speeds if "detect drive size" doesn't work (I cannot tell) then use partition size :). An.ini option to override would be nice too.

below 20 GB (or undetectable): 1 MB default.
20 GB to 100 GB drives make 'round 10 MB/s to 20 MB/s, so 4 MB chunks would fit.
100 GB to 249 Gb drives make 20 MB/s to 50 MB/s, so 8 MB chunk would fit.
250 GB to 1 TB- drives make between 50 and 100 MB/s, so chunk size 16 MB would fit.
1.5 TB to 2 TB drives are in the range between 80 and 130 MB/s, so 32 MB would fit.

2 TB drives are in the range of 90 MB/s up to >200 MB/s (the latter is the newest Seagate series), so 64 MB would fit.