[Razor12911]

There is only two disadvantage about this file splitting.

When unpacking, twice the original file size will be required.

Another disadvantage would be that all the splitted files should all be present in a folder before merging could take place(unless if TStream is used in an advanced manner). So, if you were planning on making multidisk, you first have to copy all the splits in a directory, then merge all the files into the original archive.(again, more space is required, also time.)
after merging, then after unpacking can take place.

So this is what happens when packing:
Compressing > Splitting

when unpacking(Multidisk)
Regrouping > Merging > Deletion > Unpacking > Deletion

when unpacking(Single Media)
Merging > Unpacking > Deletion