Congratulations on your purchase of the AUDYA 5.

Let me try and answer some of your questions.

1. The company did have restore disks but these were based off of OS3.0. There are no official restore disks for OS5.X yet.

2. Hard Disk only formats to 80GB with the standard AUDYA. We use a special 'tool' to format higher at AJAMSONIC.

3. Audya cannot boot without the Hard Disk. System files in the SYSTEM/INIT folder and Sound files and links in the MSP and INSTRUMENT folder get loaded during boot up.

4. Not yet.

Thanks,