4.5 fine but not great with all writers Rimmer72 | 28/08/2007 | See all Rimmer72's reviews (53) To the person who complained that they used low speeds - this no longer works. I believed this till about a month ago when I was told modern discs and writers should be burnt at the maximum available speeds. The old theory was that burning too fast caused the data buffer to run out which led to a coaster or something that wouldnt play. The opposite is now true and by doing this Ive had few failures. Im not a techie so I cant tell you why but give it a go!