The accepted desktop video resolutions have been NTSC at 640x480 or PAL at 768x576. Other resolutions simply divided one (or both) of the dimensions in half to reduce data size.
Television standards do not have a resolution of 800x600. Your computer would have to create extra pixels. The results would be bad - slow frame rate and jagged image.
If you had a HDV camera and a FireWire card in your Powermac, then you shouldn't have any trouble transferring 720p or 1080i High-Def video into your Mac. Editing it would be a different story. Apple recommends a 1GHz G4 for HDV editing in iMovie HD.
Television standards do not have a resolution of 800x600. Your computer would have to create extra pixels. The results would be bad - slow frame rate and jagged image.
If you had a HDV camera and a FireWire card in your Powermac, then you shouldn't have any trouble transferring 720p or 1080i High-Def video into your Mac. Editing it would be a different story. Apple recommends a 1GHz G4 for HDV editing in iMovie HD.