Step 8: Using 7-Zip: Reassembling the split archives.
Your job is done, since you already copied all the archives to a location, you will not need to change discs, thats already done. After you've reassembled your file, you may delete the archives from your hard disc, as you no longer need them.
I recommend this way for splitting your files, if you are looking for an economic version. The only only glitch in this way is that you need to first copy all the archives onto your hard disc, and then select 7-Zip file manager to read them. But that's not much of an issue. So if you're gonna use this mehod, its not gonna burn a hole in your pocket, since both other sofwares need to be purchased. Also, this is a light download, and the installer can easily fit in with it occupying less than 1MiB of memory. So if you are looking for economy, this is the option for you!!