Then on the ‘pictures’ tab, click on ‘Add’ and browse for your pic. Then choose your pic and click ‘OK’. Play another song and then play your original song. The album pic should now appear.
I don’t think the file-type matters.
However, it should be about the same as Windows Media Player. Try right-clicking the song and see if there’s a ‘preference’ option or something.
Click the Library tab, and then browse to the album that is missing art.
Find a picture that you want to use for album art (the picture can be on your computer or on a Web page), right-click the picture, and then click Copy.
The original picture can be in any of the following formats: BMP, GIF, JPEG, PNG, or TIFF.
In your library, right-click the album art box, and then click Paste Album Art.