Topic: my ff400 win7 dell d630 solution
Update cd/dvd firware from dell site.
Goto device manager, IDE ATA/ATAPI controllers and disable DMA on CD-Rom channel.
[img align=?]http://imglink.ru/pictures/30-11-10/a45517102a74d1e8caddfa865a5f395f.jpg[/img]
I use windows 7 x64, external ieee1394 controller (NEC 1394 OHCI-compliant) with legacy driver, 1.70 ff400 firmware and 3.031 driver.
Enjoy)