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- Nov 2, 2007
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- Vehicle Year
- 1997
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- Ford
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All the numbers you just mentioned are up to the individual ripper/encoder. The length of the video doesn't determine the size of the rip, it's based on the bitrate the encoder chooses which is usually based on a standard set by the 'scene'.
The reason they picked 700MB as the standard to compress movies into was because that's what you can fit on a CD and movies from 1.5 to 2 hours looked decent enough to be watchable at that size. Sometimes they go with two 700MB files if the movie is really long or just if the ripper/encoder feels like delivering a high quality rip.
Most ripped DVDs are 4.5GB because that is the available space on a standard non-dual-layer DVDR. The DVDs that the movies come in have pretty much always been dual-layer DVDs capable of holding 9GB of data, and people have been shrinking them to fit into single-layer DVDRs, since dual-layer burning is a relatively new concept.
I'm aware of this. But the companies assume the general public is not. And in most cases they are right.