I think that there is something that confused me:
it is written that boot kernel message is hdc=ide-scsi.
I suppose that this is kernel message for 2.4X kernel versions and it si possible that it create sconfusion.
the same Cd writer works fine in other distro. checked today
It is interesting that I have two CDROms inside, one is wroter and teh second is reader only and somehow they block each other and machine freeze. the same config
uration works in other distros.