CRC files

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cygig November 26, 2004 at 09:21:36 Pacific
Specs: Windows 2000, 256mb

Hi,
I have download a file in three parts, one in .crc extension, the other in .001 and .002 extension. How am i suppose to use those files?

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Mechanix2Go November 26, 2004 at 19:26:26 Pacific

What URL?
M2

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cygig November 26, 2004 at 21:06:56 Pacific

dunno, my friend gave them to me and am i suppose to joint the .001 and .002 files together? And when i open the .crc fil using word pad, it reads:
filename=Daedalus.3D.v1.1b.zip
size=3332772
crc32=D5539110

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iamc November 26, 2004 at 21:58:57 Pacific

CRC stands for "cyclic redundancy check". It is a simple algorithm used to verify the integrity of a file post-transmission. In your case, the .crc file contains the checksum of the illegal "warez" you got from your friend.
I would suggest either asking your friend or using google to find out how to rejoin the rar file segments you have.

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Mechanix2Go November 26, 2004 at 22:01:15 Pacific

copy/b file.001+file.002 file.zip
With luck the CRC of file.zip will match.
M2

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iamc November 26, 2004 at 22:04:12 Pacific

I'd be surprised if it were simply a split file.
I'd also be surprised if anyone who didn't already know what you were talking about could successfully follow your instructions.

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cygig November 27, 2004 at 01:36:09 Pacific

How how exactly i do it? Go to Command Prompt or what? Please explain in more detail. Thank you.

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iamc November 27, 2004 at 01:51:49 Pacific

Nice work Mechanix2Go, you really cleared things up.
This and this should provide some good reading material. For recreational purposes only, of course.

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Mechanix2Go November 27, 2004 at 03:36:28 Pacific

Cygig,
Yes, you go to a command prompt.
But first, i suggest you rename the 001 & 002 files to something like file.001 & file.002 so you don't get tripped up by the goofy names.
Before you try to join the files, make sure you have enough space.
[type]
dir file.00?
[enter]
This will tell you the total for the two pieces and how much space is available on the drive. The file.zip will take up as much space as the two pieces.
Once you do this:
copy/b file.001+file.002 file.zip
hopefully you'll have a viable zip.
As iamc pointed out the CRC is an integrity check provision.
Since you probably don't have a CRC utility, you can just test or unzip the zip.
HTH
M2

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iamc November 27, 2004 at 03:43:20 Pacific

"Since you probably don't have a CRC utility, you can just test or unzip the zip"
How would you suggest he does that? Or is it self-evident, as in your previous contribution?
Most of the programs found here can parse your .crc file, Cygig.

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Mechanix2Go November 27, 2004 at 05:04:31 Pacific

I would:
pkunzip -t file.zip
But if Cygig is DOS-challanged he would probably simply double click on file.zip and let winzip attempt to open it.
If I got three files which alledgedly had something to do with each other and had extensions of 001 002 crc, I'd say to myself, "Self. These look JUST LIKE a two piece zip and a crc." Then when I looked at the first two bytes of the 001 and saw that they were PK, I would stich 'em up and test 'em.
But that's me.
M2

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cygig November 27, 2004 at 06:15:13 Pacific

Thanks guys. The Command Prompt way worked! BTW, how did iamc noes that it contains illegal warez?

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iamc November 27, 2004 at 10:28:50 Pacific

Because you told me it does.
And I stand corrected. The files were, in fact, a simple split file. This indicates that three Russian mafia members, two middle school students and a Nun had them before cygig did. And none of them needed to use Dos for anything. We don't live in the stone age, there are tools for these things.

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