whats the difference between the mega and pixeldrain files? like mega files is 5.9gb while pixeldrain has 6.3gb?
is it missing files or something?
There are two different ways of applying the metric prefixes "kilo", "mega", "giga", and so forth to file sizes:
(a) steps of 1000 as you know it from other units, so one kB=1000B, just as 1km=1000m
(b) since PC stuff is usually done in powers of two (thanks to a bit carrying two possible informations) and 2^10=1024 being conveniently near 1000 you have steps of 1024, so 1kB=1024B, 1MB=1024kB and so forth. If you use this scale, 5.9*1.024*1.024*1.024=6.33 (one multiplication with 1024/1000 for giga to mega, one for mega to kilo, one for kilo to no prefix), rounded 6.3.
Technically the latter are not called "kilobytes" but "kibibytes" and so forth but this distinction is hardly made unfortunately. But yeah, nothing funky just two different ways of applying prefixes which are both valid and both are quite certainly the same files.