as for MakeMKV I want to open another tool to Ubuntu users too: PHC. It stands for Processor Hardware Control and, as it's easy to understand, it allows users to customize some features of CPU control in a linux environment, as undervolting.
few months ago I wrote down a guide for Gentoo to play Bluray Discs without ripping. As it seems that the topic is hot I want to help Ubuntu and Debian friends too :]. The solution is the same, just the package handling is different, so the how-to will have some changes!
Here comes a bug solution for Phctool, committed in gentoo package 0.5.2-2-r1 and developed by me :]
Phctool python-based graphic interface seems to not work due to the way CPUs id is defined. Looks like it's based still on /proc/acpi/processor/CPU./info which is no more present in my system. It looks like that kernel 2.6.36 and later doesn't support those deprecated /proc/acpi directories even with CONFIG_ACPI_PROCFS enabled.
some time passed, but still some hot stuff for you. If you have a laptop, you've experience the "damn, no free USB... it s*cks". I'm sure that of course all the small sticks that hang out from your laptop case are in terrible danger or feel uncomfortable... I have the solution... obviously not for everybody... be sure you have an idea of what you're doing...