TCA:
I looked up your model and it seems that it's a DVD unit that Dell has installed in their Laptops. Is this correct? If it is, then your absolute best bet is to work with Dell on this issue.......especially if updating the firmware is an issue. I checked the Dell support website for the model and a firmware update did come up. However, the update was for something entirely else (but still recommended). My feeling on firmware updates is: "If it ain't broke, don't update". So, what I'm saying is that calling Dell support may be your best answer, unless you want to "wing" it.
If this isn't anything to do with Dell, then I'm at a loss, because the number doesn't come up at the Philips support website.
On the other hand, this may be totally an issue with Power2Go in how you have things setup to burn the DVD. Things like the method of file naming can cause problems like this (ISO9660 vs UDF...etc) All that stuff is in the disc burning settings.
And.....if that's not enough, it could be a problem with Explorer and the OS (Vista?). Have you tried looking at the disc using "My Computer"?
Finally, (I'm not sure about this), some programs don't even "see" a disc unless the session has been finalized or closed. But that doesn't make much sense for a RW disc.
So those are things to ponder, in no particular order. Really, investigate those settings first in Power2Go. You might also want to burn the disc and take it to another computer. That would certainly verify if it's Power2Go, Explorer, Vista, or the drive.
This link to Dell support will provide you with a ton of stuff (comments, problems, updates...etc) Again, it may be better to call Dell, but the reading may narrow things down. Notice at the top of the list is the link for the firmware update. Farther down are people having similar? problems.
http://search.dell.com/results.aspx?s=gen&c=us&l=en&cs=&k=SDVD8820&cat=sup&x=8&y=3
Just about everything you'd want to read for fun?