dewman, this is a crosspost, and a moderator might ‘zap you’ if you crosspost too much.
Memorex dvd-r only tells us the brand name, not who really made it. If you do not have this program yet, download it (CD-DVD Speed) from here. Install it as instructed, then put in your Memorex DVD-R in your DVD drive, then click on “Disc Info” at the top in Nero CD/DVD Speed. Look at “ID,” then tell us what the “ID” reads as, since this identifies who manufactured the media (known as MID or Media ID).
@ Arachne, sorry, but I realized after the fact my program versions really weren’t the culprit, although I hope I said “change the media first,” then try the updates. By the way, I think the Memorex (IIRC) mids might come up as some kind of CMC-MAG or RICOHJPN, albeit both are quite variable in quality as you correctly indicate, and aren’t considered the best to use.
Also, Dewman, tell us where you live (i.e., England, Europe, U.S., etc.) and we might be able to tell you which mids to avoid or where you can get quality mids from reputable retailers online and otherwise. If for example you live in the U.S., I recommend a cheaper solution for good TY at a value price (when on sale) is the Sony DVD+R 8x at Staples. If it says “Made in Japan” on the outer cover, its mid will be yuden000t02-00. I recommend Staples because I have always checked the dye sides and found them to be pristine with no visible defects, as it seems they really store their media with great care and keep in away from sunlight, temp. variations, etc–unlike some you might find from Circuit City or Best Buy. :Z If you want to go top-of-the-line and live in the U.S., try www.rima.com and get their tyg02, or TY DVD-R 8x. Rima is highly regarded among us CDFreaks, because I’ve yet to read of one bad thing said about it; in fact, I’ve read nothing but praise for Rima, and when you buy from there, “you never have to doubt what you’ll get, because it’s always high quality,” according to some regular buyers from there. I know it’s true, b/c I’ve seen the Disc Quality scans under Nero CD-DVD Speed after the burn, and they were always spectacular.