Credit for not including the original source link?
Anyway, it now seems Pioneer and NEC 16x DVD-RAM Super Multi drives won't be compatible in any way with Hitachi-LG's 16x DVD-RAM Super Multi drives since Hitachi-LG uses Hitachi's own components. World's six largest suppliers of DVD burners:
LG (Hitachi-LG, HLDS)
Samsung (Toshiba-Samsung, TSST)
BenQ (Philips-BenQ, PBDS)
So only Mediatek hasn't commited to 16x DVD-RAM and only Lite-On/Sony and Samsung (South Korean part of TSST) use Mediatek.
My own summary of the news release at NEC Electronics:
The LSI set sample packages consist of two components:
μPC3346 set = μPC3346 + μPC63645 for portable devices, low-voltage (3.3 volt instead of 5 volt)
μPC3345 set = μPC3345 + μPC63645 for 16x DVD-RAM (and 16x DVD+RW and 16x DVD-RW)
One sample set costs 5,000 Yen or nearly about US$50.
NEC plans to achieve monthly combined production of two million of those LSI sets. So it doesn't mean there will be 2 million NEC LSI sets for 16x DVD-RAM. Not sure whether Pioneer's portable DVD burners for notebooks will also use μPC3346 chipset but the news release says the new LSI sets are going to be used in the recordable DVD drives to be developed by NEC and Pioneer.
Small step ahead.
I hope NEC won't mind for linking pictures.