Re: DVD Playback
"That was the other thing. It worked in Win7, then they borked it in Win8 (you could restore it for a fee with WMC, which was overkill just for that one purpose) and now it's back to being made available at a future time as part of Win10."
No, it wasn't borked in Windows 8, the MPEG-2 codec was purposely removed, as virtually all OEMs include DVD-playback software that already included its own DVD playback codec so not many people actually used it with Windows Media Player. You could add it back as part of Windows Media Center, which made sense.
It's still not there in Windows 10, and it won't be coming back. However, if you had Windows Media Center, you'll still have DVD playback after WMC is removed.
In short, as with all versions of Windows 8 and 8.1, you'll need third-party software if you desperately need to play it. This is fine, as DVD playback with Windows Media Player was always naff.