D and non-D model differences?

Hello. Apologies if this is a n00b question, but what are the differences between the Pioneer D and non-D models?

“D” models don’t support DVD-RAM writing. “non-D” Models do.

Thank you for the reply. :slight_smile:

Maybe it’s worth mentioning that they both have the same hardware, meaning with tweaked firmware the 116D is also capable of writing to dvd-ram discs.
In Europe however dvd-ram media is rarely used, so 116D is sold in most stores.