Disco is in beta (Toast replacement)

Macintouch reports Disco - is available as a public beta:

Disco 1.0b3 is the first public beta release of Madebysofa's CD/DVD disc burning utility. The software offers disc spanning, multi-session support, audio burning, support for multiple file systems, VIDEO_TS folder burning, motion sensor support (to guard against possible burn disruption), a variety of disc image options, and more. It also includes Discography, a feature that tracks all files and discs burned and lets you search for burned files to locate the disc they're on. Disco is available at an introductory price of $14.95 for Mac OS X 10.4.

The product comes from a well regarded independent group of engineers. It's been anticipated and I'm looking forward to trying it out. If it's good it will likely displace Toast completely.