I have just used a programme called Unstoppable Copier to copy all the data on an IDE hard drive, 'D:', to a partition on a SATA hard drive, 'F:'.

I'm pretty sure it copied all the data across.

However, drive 'D:' appears to be 113.9GB used, whereas drive 'F:' is only 106.4GB used.

Any idea why this is? Both partitions are FAT32. According to Defraggler, 'D:' has 43% fragmentation. Perhaps this could have something to do with it?
[Reply]

What size are the different partitions? That can sometimes have an effect on the file sizes.
[Reply]

The 'D:' partition is about 115GB and the 'F:' partition is about 119GB, so it isn't much bigger.
[Reply]

Do you have file compression on drive f:?
[Reply]

Were the sector sizes setup the same on both drives?

Also, why are you still using FAT32? Should ditch that ASAP and move to NTFS.
[Reply]

Not sure about the sector sizes .

It probably isn't necessary, but I made the new partition FAT32 to retain compatibility with anything which doesn't like NTFS. It is unlikely that I will be adding any new data to this partition though as all new data will be on other NTFS/Linux partitions.
[Reply]