For this you need:
1. WADpacker v 0.00003
2. WADpacker v 0.00001
3. A raw dump of a VC Game which consist of:
Several *.app files
A *.tik file
title.tmd
4. The infamous key.bin
1. First off, unpack both versions of WADPacker.
Now enter the folder of version 0.00001 and copy title.cert from it and paste it into
the folder of version 0.00003.
title.cert can also be found when doing a full dump on the Wii harddrive, but it comes under a different
name(cert.sys).
2. Copy the key.bin into the folder and rename it to common-key.bin.
3. After that, extract your raw VC dump into the v 0.00003 folder.
4. Rename the *.tik file to title.tik
5. Now run the wadpacker-VERSION_0.00003.exe either by just doubleclicking it or through cmd.exe.
Now a title.wad should have been created.