Just tried 7-8 ripped DVDs and have been unable to duplicate again (tried using both the n810 orbiter and gyro remote). One DVD dropped out completely when i tried to fast-forward by x200 and some DVDs don't allow me to skip chapters via the chapter chooser (just goes back to the very start of the DVD) but I think this is because I have moved the .DVD file and lost the dvd.keys.tar.gz file in the process. Other than that all seems well for me currently. If I come across it again i'll be sure to test/document more thoroughly.
Re the limited fast forward - it is when watching recorded TV via normal video browser (not via Myth or PVR). It is a 13GB HD recording of the MotoGP (with some quality issues because I still haven't got that fixed!
) that is yet to be transcoded to a more manageable size. No biggy, just thought i'd mention it. Oh and you're right - there is no x12, just meant around that speed.