Here is the link to the latest firmware update for your internal drive:
http://support.us.dell.com/support/d...&fileid=215046
And here is the link to the latest firmware update for your Plextor:
http://www.plextor.com/english/suppo...s/firm_716.htm
Is the Plextor not showing in the Default Drives list?
From what I saw in my search for your internal drive, there are a lot of programs that have trouble with that particular drive, so I would definately recommend using the Plextor for your file imports and burning. After you upgrade the firmware that is.