I encountered this problem on 2008-02-27 daily-live amd64 and on alpha5 i386. I have these CD drives, with the same symptoms:
SM-BENQ DVD DD DW1640
SS-SAMSUNG SCR-3232
Adding all_generic_ide to boot parameters worked. Adding ide=nodma did not. I had previously installed from the same alpha 5 CD on a different machine and it worked.
I encountered this problem on 2008-02-27 daily-live amd64 and on alpha5 i386. I have these CD drives, with the same symptoms:
SM-BENQ DVD DD DW1640
SS-SAMSUNG SCR-3232
Adding all_generic_ide to boot parameters worked. Adding ide=nodma did not. I had previously installed from the same alpha 5 CD on a different machine and it worked.