How do I combine 2 rar files into 1 rar file?

Question

I know people say you should put all the rar files into 1 folder and extract the first one but here is a different situation. I have 3 rar files. A, E and F.

Problem is, A, E, and F are not downloaded from the same user who uploaded them but if you combine E and F, you get file B, which would be able to be combined with file A to be extracted its contents (You just assume that it would, ok?).
So I want to combine E and F so that you get a new rar file which is file B. How do I do that?

NOTE: Files A and B = Files C,D,E, and F.

The reason why I think this is different from the usual situation is because,
If I extract file A, WinRAR would ask for file B (which I don't have but I have files E and F which can be combined to file B). The same applies to E and F (WinRAR would ask for files C and D). This is what I presume. Is there a way to go around this so that I can extract A, E, and F together? I presume again that there is none and that's why I asked if I can combine files E and F to make file B. Btw, I'm not so sure of this so correct me if I'm wrong. I just presume due to past experiences.

a) Just assume that if I combine A,C and D, I would get a complete file.
b) Also, the numbering of A and B are different from C, D, E and F. (e.g., A's name is soupy1.rar, B's name is soupy2.rar, C is ddrt1.rar, D is ddrt2.rar, E is ddrt3.rar, F is ddrt4.rar) Like I said, they are not from the same user who uploaded them but the contents are the same.

Thank you very much for reading through and answering this question! :)

Answer 1

It took me a while to figure out what the HELL you were talking about... The very first thing you should have outlined was what file each letter was supposed to represent. I was totally lost until I read it at the bottom, then I had to reread the whole thing. It was just poorly written. The key fact that made everything click was that you had two incomplete sets of separately packed split archives of the same thing.



Just to make it clear to others, this is your situation:

> You downloaded part-files to two different split archives, both archives containing the same program/document/whatever.

> The first archive (we'll call Archive A) is split into two parts (halves), the second archive (Archive B) is split into four parts (quarters).

> For Archive A, you have first half, but are missing the second half.

> For Archive B, you are missing the first two quarters, but you have the last two quarters.

> You are wanting to combine the last two quarters of Archive B make the equivalent of the second half of Archive A, thereby making Archive A a complete and extractable archive.



Sorry to tell you, but your presumptions are wrong. This cannot be done.



The problem here is the split point of both archives. The place where the first half of Archive A leaves off is not the same place that the "second half" of Archive B continues from. Neither archive is split up into perfectly equal halves or quarters. Split archives are divided into chunks of a certain size.



Split archives are commonly used on one-click hosting sites like Rapidshare that restrict uploads to some arbitrary file size, like 150MB for example. Therefore, uploaders split up large archives into roughly 150MB chunks and upload them separately to get around this restriction. That's why you have to download the parts separately and not all at once. In most cases, the last chunk of an archive will be significantly smaller than the other roughly equal-sized chunks, simply because the last chunk contains the remainder of the archive.



All in all, if you were to join the last two quarters of Archive B, the resulting "half" will not contain the exact same information bit-for-bit as the real second half of Archive A. There will be missing or overlapping data where the two files were split in their original archive. Long story short, whatever gets extracted from this Frankenstein archive will be corrupt and unusable.



What you are wanting to do does make sense logically, but in practice it cannot be done. All you can do now is track down the missing parts to either archive. You cannot reconstruct the contents of split archives piecewise; you need all parts of the archive, and you need to extract the entire contents all at once.

Answer 2

I didn't even read your thing.



If you have rar A and rar B, all you do is select both and with the rar program installed, right click and press "add to archive". Now you have 2 rar files in a rar file.



That's if your on windows, should be the same with a mac.



Same with 3,4,5,6,7,8,9,10 rar files

Answer 3

your making things so complicated, donwload whatever your downloading, again, or from other source. and download everything from the same user! hehe -_-

Answer 4

as far as i know, you cant do that without advanced software.