Mismatch of the Available Data Quantity on Huggingface

I tried to download English part of Roots these days.
According to the paper, there are 484,953,009,124 bytes of English data.
However, after downloading all roots-related datasets on [huggingface](https://huggingface.co/datasets?language=language:en&sort=downloads&search=bigscience-data%2F) by filtering, I found there is only about 43.8 GB data.
I wonder how to explain the difference?
Are those huggingface datasets only a subset of Roots?
Are those huggingface datasets processed Roots so that the quantity shrinks from 480 GB to 43.8 GB?

Start by comparing the paper's reported 484,953,009,124 English-data bytes with the approximately 43.8 GB available from the ROOTS-related Hugging Face datasets linked in the issue. Check whether those datasets are a subset or processed version of ROOTS; done means documenting the explanation and the scope of the published datasets.

Written by the indexing model from the issue text.