AFAIK The only CDRom drive that would work through PCMCIA would be a SCSI one using a Squirrel SCSI interface. The Tosh one will be 32bit, A1200's socket is 16 bit, and there's no drivers for anything else. You can, however, use an old 3Com 10MB/s PCMCIA network card (cheap on ebay! 3C589 IIRC).
If you're using UAE just make the directory that you've saved it to into a mouted directory in UAE and copy it from there.