Wow, those guys at heise online sure are lucky. First Samsung's Blu-ray writer and now NEC's new HD DVD-ROM drive, the HR-1100A. Translated from German:
While Samsung in its BD drive assembly blocks two lenses (one for CDs and DVDs, one for the BD), NEC uses a particular in the HR-1100A only for all three formats. It is however substantially heavier obviously with so a combination lens to select the old CDs and DVDs. The test sample, which corresponds to the level of development of the past summer according to NEC, was noticeable by very high access times, which varied between 142 ms with the CD-R, 370 ms with the HD DVD and 1057 ms with a DVD-9. NEC promises that this with the final version smaller are to fail.

HD DVDs reads the drive assembly with double speed and comes thereby on an average transfer rate of 8,7 MByte/s. With a DVD-9 it reaches 6.2 MByte/s, with an DVD-R 7.4 MByte/s and with an CD-R 3.7 MByte/s - not towering above, but acceptable.
NEC obviously has some work to do before the HR-1100A is released later this year. If you'd like to read more, head on over to heise online.