Comment 20 for bug 228624

Same for me. I had to add the 'all_generic_dma=1' parameter to be able to install 8.04 from the livecd.

In my case, it's with an ASUS DVD reader:
 Model=ASUS DVD-ROM DVD-E616P 0104, FwRev=E1.04 , SerialNo=
 Config={ Fixed Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=13395, BuffSize=64kB, MaxMultSect=0
 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
 PIO modes: pio0 pio1 pio2 pio3 pio4
 DMA modes: sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 udma2 udma3 *udma4
 AdvancedPM=no
 Drive conforms to: Unspecified: ATA/ATAPI-1,2,3,4,5

I've attached hdparm, dmesg and lspci output