^^agreed for audio files^^ but you can only get them online now, and even then they're hard to find...ACTUAL ones.
Negative R and Possitive R is like VHS v.s Beta.
I use the -R always and forever...less difficulties....you make less coasters...and they'll play in every thing.
Just my two cents.
Return the +
And get the -
Opposite for me. Always been a + guy with poor success when experimenting with -.
As for brands, I haven't found any that I consider to be superior, but have found plenty of terrible ones. Don't recall if it was Memorex or Maxell, but one of them really sucked, so I've adopted a policy of no disks that begin with M. Other than that, they all tend to be decent, but that's about it. I've burned hundreds of movies onto all brands of disks, and I've found the long term reliability of most brands to be pretty crappy.