Both are analog. VGA carries twice the data, because the colour bands are not compressed together.
No. HDMI to DVI uses a DVI-D or DVI-I connection and is digital, but a DVI to VGA uses a DVI-I or DVI-A and is analog. The best way to connect a PS3 to a projector is to see if the projector support component video through the VGA input using a VGA to component pigtail adapter. The projector might have even come with one. You then need to purchase a PS3 component video cable. This will allow resolutions up to 1080i (if your projector support it).
Some shops that sell vga component cables are Target, Best Buy and Sears. Also, online shops like Amazon or ebay would sell vga component cables as well.
There are a couple ways to connect VGA to HDMI, the easiest are either using a converter or a cable. What you choose should depend on your needs. A converter is a box that allows you to connect your VGA component and your HDMI component into a box and converts the signal. The cable connects on one end to your VGA component and the other end connects to your HDMI component and can vary in length.
You will need a converter box. It isn't as simple as a cable to convert one to the other. There are many on the market, Google Component Video to VGA converter.
The HD-PVR does not support VGA out, unfortunately. You will need a component to VGA or HDMI so you can hook it up to your monitor.
First off, RCA can do two different types of video signal: composite (the standard definition yellow RCA) and component (the high definition 3 x RCA colored red, green, and blue). Both of these are totally foreign to VGA and needs an active converter (as opposed to just a simple VGA to RCA cable of which there are many - These will work only if the VGA port outputs a signal compatible with component, or if a component port accepts VGA signals which is less than 1% of the VGA to RCA cases). There is a converter for VGA to RCA (composite) that will cost around $30, and a converter for VGA to RCA (component) that will cost anywhere between $50 and $200 (depending on if you want scaling, which will smartly change the resolution to fit your TV's settings).
At first I jumped on HDMI, but then realized that so far there is no Camcorder to HDMI cable available. So I think the next best thing out of the remaining Composite, VGA, and Component would be Component (according to a few other sites).
A monitor or a video projector.
If you have the correct cables and a DVI to VGA adapter (as most computer monitors use VGA), it should work.
dvi is higher quality
Playstations all have a composite output, whether it is a PS1, PS2 or PS3. You will only get a standard definition display with this interface but unfortunately, there is no direct way to use other outputs. The PS3 has an optional component video cable which is capable of 1080p resolution. Most projectors are supplied with a component/VGA adapter that uses the VGA input port but accepts composite signals. Depending on the resolution of the LCD panel, you may only be able to use a 720p resolution with this projector. By obtaining an HDMI to VGA converter or an analog HD component to VGA converter you will be able to obtain a higher resolution up to 1080 line if your projector supports that resolution. You will not be able to use the 3D Blu-Ray features of the PS3 with this projector, as the PS3 requires an HDMI connection for this.
VGA isn't the best option. Consider using HDMI or DVI to hook up your computer.