I bought a NEC 4551A ~1 year ago and always burned no-name 8x DVD+R’s without problems. Some months ago I switched to higher quality media, some Verbatim 16x DVD-R. Now the first problem: the drive burnt only with ~8x. The drive supports 16x and the DVD-R’s too.
I wondered if it’s the only issue and started bothering around with Nero DiscSpeed. I never used it before so don’t kill me if I did sth wrong :p, but it seems like that NEC gives really bad results as from what I’ve heard that TYG03 DVD-R’s are good media.
I had other media code Verbatim DVD-R’s before (can’t remember which though) and also some no-name DVD-R’s which had the 8x issue too.
I also had different firmwares. First original 1-85, then Dee’s 1-X3 and and now Liggy’s 1-09.
I hope you guys can help me if I did sth wrong or if the burner is really broken.