I bought Sony DRX-800UL ~ 1693 last month and have written about 60 DVDs. The first 10 DVDs was written with verification, and no problem encountered, so I started to forgo the veriication to save time.
Just now, I had a fail verification after successful burn. The DVD can't be read entirely with 'copy' from windows explorer. So it's a defective burn that was reported successfully, and wouldn't be detected without verification.
I use Sony 8x Media btw. Is this nomal? or should we always verify after burn? I don't like the idea of burning data and delete the original copy where the success write is not a guarantee of success read.