LG GCE 8160B - Overclocking?

I’m new on the forum but I did a search on the subject but I didn’t find any results.

I would like to overclock my CDRW has anybody knows a firmware that fit mine?

Another thing… A few days ago I tried to
update my models firmware to 2.01 by booting with a windows 98 CDROM (pressing F8). All my CDROMS were detected by MSCDEX.
When I executed je1 <filename> 4 /m the progress indicator stayed all the time in 0% is it possible that nothing happened because of mscdex?

The CDRW is in the secondary slave.