## Merger Dialog

What's merging anyway ? Some sets are so called 'parent' or 'clone' sets. They share some ROMs and it's possible to put these files in the same sets. That's merging. There are three kinds of storing sets:

1. No Merging - every single gameset has all files it needs in its set.
2. Split (Merging) - files which belongs to the parent set are stored in this parent set. Other files stay at their places.
3. (Full) Merging - all clone files are also stored in the parent set. So you only have the parent set with all clones in it.

Unmerging is the opposite of merging and it will create sets which aren't merged. (Compare 'No Merging')
Merging can last from seconds to hours. That depends on the amount of files, the filesizes, your CPU, your HD the compressionlevel and the thread priority. It's possible to stop the process at any time.
Be warned: The backup option in the settings dialog doesn't work for merging ! Use (disable) the CleanSet instead if you don't want to lose any data.
Hint: in most case the Rebuilder is the better choice.

### The options:

The title bar shows the currently selected profile and the number of selected sets. This behaviour was changed to a tool tip appearing when hovering over the title. For further information check out the settings dialog. Always be careful if the number doesn't match your selected number. The lower window is the warnings window. All warnings will be listed there. For the warnings-window popupmenu options, go and take a look in the scanner documentation.

####

#### Systems...

You can select which Systems... you want to (un-)merge. Only active systems will be used.

#### Merge Options

With the following two options you set your wanted merge method.

- Non-Merged Sets

  Enables the unmerge mode. Unmerged means that each set has ALL files it needs. This is normally a waste of diskspace because even clone sets have the parentsets included.

- Split Sets

  Enables the split (merge) mode. Split-merged means that parent sets only have the parent files and a clone sets consists of the clone files only.

- Merged Sets

  This enables the (full) merge mode. Full merged sets are parentsets only, which also include all clone files.

Now you can also specify what to do with the files and the old files.

- Clean Set

  Enable this option if you want to delete unneeded files in a gameset while doing a merge operation. Otherwise the files 'stay alive' and the files are added to the archives.

- Compress Files
  Enable this option if the destination files should be compressed. The files will be compressed with the compression level which is set in the settings dialog.

With the placement options you specify where the new merged files will be put to.

- Keep Original Position
  If this option is enabled, clrmamepro will store the merged set in the path of the parent set (full merging) or in the path of the parent and clone set (split merging). Same for unmerging.

- (Un)Merge Parents/Clones To
  Here you can enter a folder name. Click the right button to browse for a folder. clrmamepro will (un-)merge the files in this folder.

### Gameset which are neither parents nor clones stay in their original places !

And finally the one important button to start the unmerging or merging process.

- (Un-)Merge
  Starts the merging or unmerging process (depends on the chosen mode).