the DVD's media code is what shows the real DVD's maker (not always tho cuz there are fakes) but Memorex doesnt make their own DVD media. Usually memorex DVD's are made by like CMC MAG(crap), Ritek(decent), MCC(good), Prodisc(crap) and more. As you can see, when you buy memorex, its all luck of the draw. Your coasters might possibly be due cuz of crap media. Updating your firmware might help as different firmware versions may have higher media compatability but not always. Make sure you backup your original firmware before flashing if you havnt already.
as for the 3.22 firmware, im 90% sure its safe for ALL NEC 3520 drives but i wouldnt take my word for it. Id wait for some1 more knowledgable about firmwares to answer that question as im a n00b at flashing firmware (but not a n00b when it comes to DVD burning).
< Message edited by rahzel -- 3/25/2005 5:51:50 PM >