Before revision:  This  document describes the format  of the SPHERE dataset , as well as the known and potential data quality problems  , their workarounds, and other information important to people working with the SPHERE data, software, and hardware  .
After revision:  This document describes the format of the SPHERE dataset , as well as the known and potential data quality problems (both known to exist in the dataset(s) and potential ones) , their workarounds, and other information important to people working with the SPHERE data, software, and hardware .