Question about random access file

Question

To test different cardreadersI wrote a program to do the write/read data test.At firstcopy a file of certain size form Harddisk to the cardsand then read the file form every card(s) and campare the data with the source file data.According to the capacity of each cardI should choose comparative file size from a ComboBoxsuch as 1MB32MB64MB512MB1GBect.Amd what's moreI can not know what the number my user will input to the ComboBox.Somy question is:If there is a way to let me read 1GB(or some other number>1MB) data from a file(size more small and more better.)? Thanks!

bilnaad · Answer

I have no real experience in this kind of matter ^_^ I think you want to test the device(card or whatever) if it reads or writes. To test it's writing you want to fill the full space of the devices disk? And to test the reading you want to read all the data back and compare it with the data should be written on de disk? Since every device has a varying disk size you could just stick with 1 MB file and write a file that is sequence of that 1 Mb file. So if the disk is 256 MB you can write one large file wich contains the 1MB file 256 times. And read it like the same principle. It's just an idea. I don't know if this is usefull or wht you wanted to ask ^_^ Good luck Momer ^_^ regards