The Photo Albums -> Import Photos menu item opens the following screen:
When you first see this screen, it learns you where your Depot directory is.
It is usually something like
What you should do is, create an FTP account to that specific location in your WordPress installation.
Now upload a few photos by an FTP program like FileZilla to your depot, and refresh the Import screen:
Select an album, and press the button.
As you can see on the screen, there are various types of files that can be imported. If you enabled Audio and/or Video support (Table IV-A22 and Table IV-A23) you can import those file here too. The benefit of doing it this way is that you do not need to worry about max uploadable filesizes and all kind of other server limitations. No time-outs on the Ajax Import method while you can see the progression of the import process.
Two types of import can only be done using the button: Directories with optional subdirs containig photos, and Custom data files of type .csv.
A recommandation is to keep your depot clean - there are checkboxes to remove items after (un)successfull import - and process one type of files at a time. You may however import audio, video and possible poster image files at the same time.
A typical import page lay-out may look like this:
Notes and recommandations:
- Import of directories with content is limited to photo files only.
- If you have one or more directories, there will not be an Ajax button.
- Do direcory import separate, out of an otherwise clean depot.
- The directory structure with possible sub-directories will be converted to the corresponding album structure with sub-albums accordingly.
- You can switch the preview thumbnails off in Table IX-B14
- To import 'normal' wp media files, or other photo files from locations on your server, select the location in the Import photos from: selection box and press the button.
Locations that contain no usefull files are grayed out.
- If your server allows you to use curl, you can import photos from other websites, if you know the urls of the pages where they show up, or you know the urls of the photofiles themselves. To do this, select Remote in the Select Local or Remote selection box and press the button; then select the remote location in the Import photos from: selection box and press the button.