[lack]

copy below code to a text editor, and then save it as a .vbs file the run it.
You will need to tweak it to suit your need, I'll explain some on the bottom, other than that feel free to ask.

topFolder = "D:\One Piece\"
zipExec = """C:\Program Files\7-Zip\7z.exe"" a -tzip ""@dest"" ""@src"""

dim fso, wsh
dim execStr
dim f, f1, sf, f2, sf2, mf, fullPath
dim chapterFileName, chapterTitle, volumeFileName

Set fso = createobject("Scripting.FileSystemObject")
Set wsh = WScript.CreateObject("WScript.Shell")

Set f = fso.GetFolder(topFolder)
Set sf = f.SubFolders
For Each f1 in sf
	'<Step 1> create cbz for each subfolders plus comics.txt
	Set mf = fso.CreateTextFile(f1.path & "\comics.txt", True, True)
	Set sf2 = f1.SubFolders
	For Each f2 in sf2
		'directory name is the title
		chapterTitle = "Chapter " & f2.name
		chapterFileName = f2.name & ".cbz"
		
		fullPath = f1.path & "\" & chapterFileName 
		if fso.fileExists(fullPath) then fso.deleteFile(fullPath) 'delete previously created cbz file if exists
		execStr = replace(replace(zipExec, "@dest", fullPath), "@src", f2.path & "\*")
		wsh.run execStr, , True
		'write entry in comics.txt
		mf.WriteLine(chapterFileName & ":" & chapterTitle)
	Next
	mf.Close
	'<Step 1 ends here>
	
	'<Step 2> create cbc - directory name is the volume title
	volumeFileName = f1.name & ".cbc"
	execStr = replace(replace(zipExec, "@dest", f.path & "\" & volumeFileName), "@src", f1.path & "\*.cbz"" """ & f1.path & "\comics.txt")
	wsh.run execStr, , True
	'<Step 2 ends here>
	
	'<Step 3> cleanup - delete cbz and comics.txt
	execStr = "cmd /C del  """ & f1.Path & "\*.cbz"""
	wsh.run execStr, , True
	execStr = "cmd /C del  """ & f1.Path & "\comics.txt"""
	wsh.run execStr, , True
	'<Step 3 ends here>
Next
set fso = nothing
set wsh = Nothing

If any of you knows vbscript the script would be self-explanatory. For others, read below.

First of all, edit the [zipExec] to the command prompt of your zip program. I use 7zip installed with common configuration, and the command of the code above works for it.

Then you will need to edit [topFolder] to your manga directory.
for example, mine was "D:\One Piece\". Be sure to add the trailing backslash.
below this directory there are volume folders, with names like "volume 01", "volume 02" etc. Below the volume folder, is chapter folders, with names ranging from "001-xxxx", "002", to "one_piece_501" etc. Inside the chapter folders is the images.

I've labeled the script with <step 1>, <step 2> and <step 3>

<step 1> zips the images in each chapters in [its folder's name].cbz, and create a comics.txt in each volume folder containing the list of cbz files and its corresponding chapter title, which is just the chapter folder name plus "Chapter " added in front. After this step is finished you will have several cbz and one comics.txt in each volume folder.

<step 2> zips all the cbz and comics.txt to a single cbc, and put it in the top folder. File name is the volume folder name.

<step 3> just deletes all the cbz and comics.txt

If your naming is perfect by the time the script finishes (600 chapters here, about 20 mins, 3 yr old core 2 duo machine) you will have, in the topFolder, only cbc files of your volumes.

If you are not sure, have a lot of naming problems or want to set the chapter titles by yourself, just backup the original script, delete <step 2> thru <step 3>, run it and you can edit the corresponding comics.txt after the script finishes.

After all is done, get the backup, now delete <step 1> instead and build the cbc only. delete <step 3> if you don't want to delete the cbz right away.

Hope this helps