I don't know if removing the floppy would help. The live CD simply does not utilize it.
But this may help
Never have two hard disks on the same IDE controller - it can work, but ...
So put the slave disk as master on the second IDE and move the master burner as slave to the first IDE or any way you find simple, so that you end up with one hard disk (master) and one optical unit (slave) on each IDE channel. There's a chance it may help as the error message is a bout ata1
If it does not work, temporarily have only the hdd connected to the first IDE channel during installation.
If and when everything is done connect it. Then you have to adjust fstab accordingly - study it and copy the line for the existing burner, but increase it's "dev number" by one. I think that'll work if you get that far
I know that many PC Chips motherboards have an IDE controller that is not Linux friendly
Don't hesitate to ask for help if I'm too "technical"
Don't fix it if it ain't broken, don't break it if you can't fix it