Attributes with Multiple Values
The following table lists the attributes that support multiple values. Some attributes can have multiple values only in ASF files, while others can have multiple values in both ASF and MP3 files.
| Attribute | Support for multiple values |
| Author | ASF, MP3 |
| WM/AlbumArtist | ASF |
| WM/AlbumCoverURL | ASF |
| WM/Category | ASF |
| WM/Composer | ASF, MP3 |
| WM/Conductor | ASF |
| WM/Director | ASF |
| WM/Genre | ASF |
| WM/GenreID | ASF |
| WM/Language | ASF, MP3 |
| WM/Lyrics_Synchronised | ASF, MP3 |
| WM/Mood | ASF, MP3 |
| WM/Picture | ASF, MP3 |
| WM/Producer | ASF |
| WM/PromotionURL | ASF |
| WM/UserWebURL | ASF, MP3 |
| WM/Writer | ASF, MP3 |
Source: MSDN