This is only possible with Compressor 3.5 and higher in Final Cut Studio 3. Roxio Toast can do it as well but it needs an Intel computer on Leopard.
You're going to have difficulty finding applications that support your system, I'm afraid. A lot of developers only support the current OS and the previous one, and Apple's new developer tools aren't even capable of compiling for PowerPC systems anymore.
My software:
Pro Maintenance Tools - Tools to keep Final Cut Studio, Final Cut Pro X, Avid Media Composer and Adobe Premiere Pro running smoothly and fix problems when they arise
Pro Media Tools - Edit QuickTime chapters and metadata, detect gamma shifts, edit markers, watch renders and more
More tools...