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Old 01-30-2006, 07:51 PM   #1
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Default Files ---> smaller

IS there anyway I could make a file smaller?
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Old 01-30-2006, 08:01 PM   #2
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Default Re: Files ---> smaller

Use some sort of file compression device like WinZip.
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Old 01-30-2006, 08:03 PM   #3
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Default Re: Files ---> smaller

what kind of files?
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Old 01-30-2006, 08:35 PM   #4
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Default Re: Files ---> smaller

avi and rmvb...
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Old 01-30-2006, 09:48 PM   #5
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Default Re: Files ---> smaller

compress it.
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Old 02-01-2006, 05:50 PM   #6
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Default Re: Files ---> smaller

Im sorry, but I am too stupid...how do u compress it?
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Old 02-01-2006, 06:40 PM   #7
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Default Re: Files ---> smaller

Well, I haven't heard of rmvb, but AVI is just a simple format.

You can compress these files using codecs which basically make the file smaller by taking short cuts, rather like MP3 files do.

Examples of compression are MPEG 2 (Used in DVD)
DIVX (A great format but needs a decompressor on the computer on the other end to run them, and not all computers have it)

and then of course, theres the simple Windows ones that come with players like Windows Media Player.

HOW IT WORKS:

The screen is split up into many squares of so many pixels, making blocks.

If a frame doesn't change for a frame, the compressor will say "right, that data there can stay exactly the same" (no more data needed),

But if only parts of the image are moving, for example if there was a white background with a moving circle, only the parts with the moving circle would be replaced every frame based on these blocks noticing changes, saving alot of space.

After the compressor has read the file and done all these changes, the computer your running it on needs a decompressor to decompress the data, and make it readable.
Without the right compressor, it just won't run, or if it did, your not likely to get much on the screen since each one uses a different formula.

Now you know the fundermentals, I'll try and find a compressor for you. Bare with me

CODECS AND CONVERTORS:

Heres the first one, DIVX I mentioned. Its actually better than DVD I think at high bitrates but offers excellent quality/vs space factors. So great for video:

http://www.divx.com/divx/create/?hp3createmoreinfo

Theres a trial, but I'm afraid you'd have to buy it, though the codec/decompressor itself is free, you couldn't convert your video to this without the convertor which isn't.

This is a free one which changes the formats of AVI to another one, but adds compression also. I haven't tried it, but it seems okay:

http://www.rivavx.com/?encoder

I'll keep hunting for you. But try these out and tell me what you think
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Old 02-01-2006, 06:49 PM   #8
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Default Re: Files ---> smaller

That's right. And that's why, sometimes, when you watch videos online, you'll notice the image blurs a lot more when things are moving, and when things are relatively the same, they often look a lot better.
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Old 02-01-2006, 06:52 PM   #9
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Default Re: Files ---> smaller

Yeah, and also why if you have a really bad compressor/decompressor or set the quality to low, some blocks won't change as fast, so on a fast moving image, you'll notice varying amounts of what I'd call "sticking" where the image basically tries to keep up, but leaves fragments of frames before, taking a while to clear up.
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Old 02-01-2006, 07:01 PM   #10
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Default Re: Files ---> smaller

That only happens to me on VLC player... Windows media player just inverts all the colors...
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