Mounting other cdrom in Knoppix for a moment

I've booted from KNOPPIX-CD. Is possible to remove this KNOPPIX-CD for a moment, insert other CD, copy from that and put KNOPPIX back ?

The "knoppix toram" command copies knoppix to RAM and you can run it from there. Then you can use the cd drive to insert another cd.

I don't think so, that i have enough (256MB) memory to do that :(, do you?

buy another CDRom