|If I have a file that's "Size" is 3,764,140 bytes, but the "Size on disk" is 3,764,224 bytes, I understand that there are 84 bytes of wasted space in the last cluster of the file. From my previous knowledge, I understand that there may still be old data written to that "wasted space," even though its not used by the new file.|
I noticed that when transferring the file to a CD, it still has the same "Size" (which makes sense), but also the same "Size on disk," as it did when it was on my computer's hard drive.
My question is, when transferring a file to a CD, does the computer only transfer the actual "Size" of the file, and so the reason the CD's "Size on disk" for that file is the same as the computer's "Size on disk" for that file, is because they have similar cluster sizes? Or is it that, when transferring a file to a CD, are you also moving any of the wasted space on the last cluster of the file (that 84 bytes of old data)? If this is not the case, how does the computer recognize to only transfer up to a certain point within the last cluster, and not transfer any old data on that "wasted space?"
I apologize for not being totally brief. But any help would be appreciated.