Hi there, welcome to our forum
Both drives can do the tasks you are describing above.
If you'd do a search on our forum on these two drives, you'd find tons of information, regarding the goods and the bads of both drives.
I'd go for the Pioneer, as it's as good as the Sony is but it costs less. What I heard from some people, is that the -R part of the Pioneer drive is way better than the -R part of the Sony drive. If you want to use -R media (some older DVD players prefer -R media, same goes for consoles), the Pioneer is definetively the best choice.
As I said before, do a little searching and reading around and you'll know what to do...