Zilla CD-DVD Rip N' Burn 6.3 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software is categorized as System Utilities. The actual developer of the software is ZillaSoft.ws.
From the developer:
Zilla CD-DVD Rip & Burn for CD & DVD burning & ripping. Data Burner - create & burn traditional data CDs, DVDs, and ISO-images as well as multi-session & bootable. Audio Burner - create & burn audio CDs easily from WAV, MP3, WMA, OGG, RAW, VOX, etc files & burn CUE-images to disc directly.
You may want to check out more software, such as Ashampoo Burning Studio Free, Goodisc CD DVD Burner or Red-Hot CDDVD Burner, which might be similar to Zilla CD-DVD Rip N' Burn.
Office Tools
CD & DVD Software