low grade compared to movie quality.
That depends a lot on what sort of data you store in those MB, for example low-quality sound, high-quality sound, low-quality video, high-quality video.
You can transfer a standard video to HD using a converter, but the resolution will still be the same -- you cannot get a higher quality video from a low-quality master without going through every frame of the video and manually editing every pixel.
YouTube videos may be appearing in a low quality setting for you because either your internet connection is too slow, or because the video uploader's original video was low quality. If your internet connection is slow, try closing browsers and applications you're not using and select a higher quality video setting to enjoy YouTube's videos.
Low-volume = higher quality, plus it has more dpi and better color quality.
That's not possible. An important factor in whether something is "low quality" or "high quality" is the resolution of the video and the sampling rate of the audio. If the camera was not sensitive enough to record a higher resolution, there's nothing you can do; the information simply isn't there. Similarly, you can't turn a downgraded video back to a good quality version because the data as removed from the video.
Avidemux shows the error message "bitrate too low" when exporting a video file because the bitrate setting for the video is not high enough to maintain the quality of the video during the export process. Increasing the bitrate can help improve the quality of the exported video.
I'm looking for an answer to this question also. It looked like stage6.com was the place, but it is now shut down. It uses the DivX video format. I think most sites use Flash video which accounts for the low quality. I'm not sure what format Veoh uses.
The answer depends on what you wish to store? Low or high quality audio, or low or high quality video.
High quality pizza tastes better. Low quality pizzas use low quality ingredients which contain a lot of fat. For example the pepperoni on low quality pizza is likely to be factory processed meat, whereas pepperoni on a high quality pizza is fresh cut meat.
The low-tech way would be to inhale a bit of helium, which has a low density, making your voice higher. A better way would be to open the video in some video-editing software on your computer, and then add an effect to the sound of your voice to make it sound higher.
Either use the low-quality version of a video, free up your internet connection while watching a video, or get a broadband internet package at the very least above 1 mbps.