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 and the expected content 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 .