Hydrogen peroxide powered rocket packs fly for around 30 seconds, because they have a specific impulse of around 125, meaning that one pound of propellant can make 125 pound-seconds of thrust, meaning that it takes about two pounds of propellant for every second you are in the air. Mass ratios are low for anything strapped to a human, so the exponential nature of the rocket equation can be safely ignored.

A pretty hot (both literally and figuratively) bipropellant rocket could manage about twice the specific impulse, and you could carry somewhat heavier tanks, but two minutes of flight on a rocket pack is probably about the upper limit with conventional propellants.

However, an actual jet pack that used atmospheric oxygen could have an Isp ten times higher, allowing theoretical flights of fifteen minutes or so. Here, it really is a matter of technical development, since jet engines have thrust to weight ratios too low to make it practical. There is movement on this technical front, but it will still take a while.

John Carmack

I can't believe my eyes. Someone is really complaining that the DVD releases are in the aspect ratio that the director and cinematographer intended? Wow!

All these films have been framed for aspect ratio of 1.66:1 or 1.85:1. It's what the director and cinematographer wanted. It's the aspect ratio that is seen in theaters. It's the correct aspect ratio. Of course, the actual film frame itself has an aspect ratio of about 1.37:1, so there is more information available in the original film frames, but it's not supposed to be seen, and it's been framed out.

Because so many uninformed individuals seem to prefer wrong aspect ratios to black bars on their 82-inch 4:3 TVs it's pretty common to do TV/video versions of these movies by simply opening up the top and the bottom of the frame. This is called open matte. This way there is more picture to be seen, yes, but it's all picture that's not supposed to be seen. There may be visible microphones, visible effects, visible set pieces, that were framed out by the director and the cinematographer.

More explanation about widescreen formats and how they're done, with examples: http://www.modeemi.fi/~leopold/AV/FilmToVideo/#Vid eoSoftMatte. The page has also a demonstration of how Super35 widescreen/4:3 versions are done, which is worth noting, because it's the process that's widely used nowadays in high-profile productions, such as The Lord of the Rings or The Matrix trilogies.

Remember kids, it's intended to be widescreen, unless it's either very old or by Stanley Kubrick.

There is a Sega Model 3 arcade hardware emulator in development. That hardware uses a PowerPC 603 or 603ev CPU at speeds ranging between 66 and 166 MHz. I can assure you the emulator is real.

PPC hasn't been emulated previously because there hasn't been any demand for it.