Okay, so I'm one of the 92342398423 people that ran out and bought one of those ridiculously cheap LG GSW-4040Bs last year. Obviously not the best, but I haven't had any problems with it until now, zero coasters/broken stuff etc.
I used to keep on top of current media quality and such for CDs, but was relatively clueless about DVD media when I got this, so I started off with a spindle of 25 whatever crappy rebranded AN32 media (which also works reasonably well), which is also not the point.
A month or two ago I ordered 50 white/print top Ritek G04 DVD-R blanks from www.blankmedia.ca, and these worked great for a while, used maybe 15 of them so far. Starting a few days ago, I've had an extremely hard time getting anything usable out of these; they'll burn fine but Nero will choke on verifying basically everything in the last 5-20% of the disc (more or less random), and trying to copy/read the files back agrees with this. This happens at 2x or 4x, and I've made about... say, five coasters out of the last 7 G04 blanks. I tried using a blank from near the other end of the spindle out of curiosity, same result. From what I've seen this media typically works (relatively) very well in this burner. I just made a copy of the same data onto one of my old AN32 blanks, and it's perfectly fine (as perfectly as this media can get anyways, like 15/1.5 avg PI/PO/8 blocks with kprobe on a liteon drive).
Anyways, my question is, anyone know of a convenient explanation for this? I'm assuming the media is simply bad, but again, that doesn't seem that common with this combo of drive/media, the first dozen or so were fine, and keep in mind this media is repackaged from bulk packages of what, 600?
fwiw, using the latest useful firmware, a302 i believe.