I do this with my e-mu sampler so I assume the method will be the same. First save your samples onto your s760 formatted disk. then connect your syquest drive to your mac, but don't put in the cart yet. Start up toast and then put in the cart (this should stop the Mac ejecting the cart). Select "scsi copy" in Toast (disk copy in v4.1),and select your syquest drive. then burn.
Stewage.