Can't install on PowerPC

Hi, I recently downloaded the latest 15.04 version of Ubuntu Mate for PPC and burned it to a DVD. It does boot on my 15’ 1.67GHz PowerBook G4. Colors on the live disk are really messed up and the installer crashes on the timezone selection step. I figured I’d test it on my G5 and it doesn’t even boot. It just says “Media failure”. My G5 runs great on 10.5.8 Leopard but I’d really like to run a modern OS on the PowerBook to try to breathe some new life into it. Any suggestions?

Yep, endian bug in Xorg. Finally got this fix in 15.10. Not released yet but will be released in 15.10 soon.