> In RC7, the Byte saved and Transfer rate reads 'MiB' 
> and 'KiB/s' respectively

Absolutely - see
<http://physics.nist.gov/cuu/Units/binary.html>

one kibibit  1 Kibit = 210 bit = 1024 bit 
one kilobit  1 kbit = 103 bit = 1000 bit 
one mebibyte  1 MiB = 220 B = 1 048 576 B 
one megabyte  1 MB = 106 B = 1 000 000 B 
one gibibyte  1 GiB = 230 B = 1 073 741 824 B 
one gigabyte  1 GB = 109 B = 1 000 000 000 B