Well for what it is worth i have 500GB X-TERNAL HDD by WD that when i tried to transfer data from my old HDD that is about 8yrs. old to a newer SSDH HYBRID HDD to save what i may lose in the near future because of the age of old HDD,i ran into a little problem i could not transfer any data to new HDD.
I ran the WD diagnostics program and it turns out that the WD HDD has gone bad after about a year that is why i am looking at flash drives to extract data from old HDD and as far as the
difference between 69GB'S and 64GB'S i was under the impression that you could not remove OS unless you erased the HDD totally,also i thought that WINXP used up about 16GB'S TO 20GB'S of space on HDD which if you subtract that amount from the 64GB'S on flash drive then there should be enough space to put all of the data on it is my analysis of this wrong,thank's.
Now as far as WD X-TERNAL HDD it is out of warranty so now i have expensive paper weight,also flash drives are supposed to be harder to damage as compared to x-ternal HDD'S.