SRB442,
There is just one thing that has not been said : It is suggested that you buy the media that is rated for the same or just above your wrter max. speed, better than buying too overrated speed media. To give samples :
If you use 12x media in a 16x writer, since you have to burn at 12x, you are loosing performance.
If you use 16x or 20x media in a 16x writer (the recommended as per above rule), burns work OK and the media is best suited for your writing speed. <----- SUGGESTED
If you use 32x media in a 16x writer, it will still work, BUT the media characteristics are not *optimal* for 16x writing.
The idea behind is that you need a media surface that does some reaction to a laser beam in a given time interval, not over or underreaction...
In any case, I am just the messenger, and don't know for sure whether this is true, but at least mentioned in some places and FAQs around.
Regards
FTC