- Double-Speed CD-ROM @ 320KB per second transfer speedAudio CD compatibleCD+G compatibleCD+EG compatibleCD single (8cm CD) compatibleVideo CDPhoto CDElectronic Booksdigital Karaoke (optional)[*]Out of the box, the Sega Saturn plays standard ISO-9660 formatted CDswith software programmed for use with the Sega Saturn (regional code permitting).[li]In addition, the Sega Saturn can play Music CDs (standard and 8cm singles) by way of full featured CD player contained in the system's firmware.There is also native support for CD-Gs and CD-EGs.Finally, the Saturn can also play VCDs with one of the optional video decoder cards added in. In the UK, there was also software sold that allowed Kodak Photo CDs to be viewed.
Go to this Section "9.7 Can I play CDR discs (copied games) on my Saturn?" in this FAQ
So from all of this, I gather that the Saturn discs use subchannel info; further they may or may not require a 96 byte read/write. So, what to do? Try karoke settings which is both subs on the read. On the write, leave "Don't repair..." unchecked.
From the Section in the FAQ I pointed you to, I gather that you'll still need a 'mod chip' or similar measure to actually play the backups. I hope this helps