This directory contains the de-reddened spectra, using 
the Cardelli et al. (1989) Milky Way extinction curve 
with RV=3.1, and E(B-V) from the Schlegel et al. (1998) 
map.

Objects are organized by plate in each sub-directory.

Due to space limit, these spectra are not provided here.
You can retrive these spectra at 
http://das.sdss.org/va/qso_properties_dr7/data/dered_spectra/