I had been using Sony DVD+R discs with a 95% coaster rate.
I had bought (3) 10 packs last year.
I had thought that I had gotten stuck with crappy media, so I bought a 50 pack of TY DVD+R discs.
I had very good burns with these, but still way to many errors, so I thought that I would try to burn a CDR instead.
I had also bought a 50 pack of CDR's 1 1/2 years ago, and never had a problem with them.
I looked at the spindle and noticed that they were CD-R discs.
Then I got an instant flashback of when I first got the drive and made nothing but coasters because I had bought CD+R discs instead of CD-R discs.
The store that I bought them from gave me a full exchange of the CD+R spindle for the CD-R spindle sans the 8 coasters, which was most excellent of them.
I called NEC about this, and they told me that I could only use -R media with this drive.
My question to all of you is why this is so.
I can see from the image below that my drive only supports CD-R, but it says it supports DVD+R as well as DVD-R.

Anybody feel like explaining this to me??
And go easy on the tech talk please.