Yeah, true.. unfortunately it comes down to either the widescreen games lose a part of them, or the none widescreen ones get black bars. Whatever direction is taken, one will suffer, and I think the black bars is the least harmful as nothing gets cut off of anyones videos. I know, it doesn't look very pretty but it's a common issue 4:3 aspect ratio has these days in a 16:9 world.
Could always fill those black bars with a plasma effect (also done in construct, heh) so they're not so dull looking.
Otherwise the problems you listed above could be directed at widescreen games too, so I thought about it before suggesting 720 and figured at least with the black bars, nobody will lose part of their game, it would be the least damaging, avoids zooming (which will spoil some vids), avoids cropping or having to do the whole pan and scan thing, or even shrink the widescreen ones until they've got black bars on the top and bottom. Hmm.. you just gave me an idea actually for a thread!
Oh, before anyone wonders too. The one I was planning to submit would be 1024x768, so the 720 thing isn't some personal preference aimed to make my own look good. It's more to do with the fact that it's going on youtube and that's the format they use for HD and 4:3 aspect ratio is gonna get black bars once it's on there anyway
Course, being aware of that, and knowing we'd be providing video for 16:9 aspect ratio. We could fill in the gaps We'd get otherwise, such as sticking our site urls in there etc. lol.
As for the exe vs video "discussion" that seems to be going on in the thread, I suppose I should explain that. The whole reason I allowed for a choice, was knowing not everyone would be able to record their own games as video. It does take some horsepower to record at a decent framerate, and for those not able to do it, they'd have the alternative with providing an executable instead, so they weren't left out. My personal view would not even be to allow executables (I have major issues with constructs ability to delete files without alerting the user). Video's however, as Mary Jane and Arima have pointed out, would ensure the best bits are seen, and that it'll look exactly how the user intended.
But yeah, only included the option to make it fairer for everyone, sorry if that upset anyone, lol.