Maconnect released version 1.30 of their LiquidCD application today. LiquidCD is a plausible alternative to Toast and other Mac burning solutions. Version 1.3 adds 'experimental' support for Nero .nrg files, has new icons in the toolbar, and added support for more .cdi files. This is amongst other changes and bug fixes. LiquidCD is donationware and available for download here.