Barry, run the DXDIAG.EXE program described in the Microstudio Tech Support Forum and email it as instructed.
Mitsui media can be bought from 2 vendors we know and use. The are listed at:
http://mtu.com/basics/cd-topics-suppliers.htm in this site. At this time, I would suspect your media.
Also read
http://www.mtu.com/vbulletin/showthr...p?threadid=332 for other causes why your
computer may not be able to write faster. This is beyond our control.
PS: Please post your answers under this Thread versus creating a new Thread for each post. That maintains the Thread history until a solution is found for your problem.