| Label: | MCA Records B000027000 |
| Genre: | Electronic, Rock |
| Style: | Abstract, Post Rock, Experimental, Ambient |
| Format: | CD (Maxi-Single) DVD (DVD-Video , NTSC) |
| CD-1 | Untitled #1 | 6:39 |
| CD-2 | Untitled #1 (Remix, Part 1) | 4:41 |
| CD-3 | Untitled #1 (Remix, Part 2) | 2:47 |
| CD-4 | Untitled #1 (Remix, Part 3) | 4:22 |
| DVD-1 | Svefn-g-englar (Video) | |
| DVD-2 | Viðrar Vel Til Loftárása (Video) | |
| DVD-3 | Untitled #1 (Video) |
| Label: | FatCat Records DVD10FAT02 |
| Genre: | Electronic, Rock |
| Style: | Downtempo, Post Rock, Experimental, Ambient |
| Format: | CD (Maxi-Single) DVD (Single) |
| CD-1 | Untitled #1 | 6:43 |
| CD-2 | Untitled #1 (Remix, Part 1) | 4:38 |
| CD-3 | Untitled #1 (Remix, Part 2) | 2:47 |
| CD-4 | Untitled #1 (Remix, Part 3) | 4:22 |
| DVD-1 | Svefn-g-englar (Video) | |
| DVD-2 | Viðrar Vel Til Loftárása (Video) | |
| DVD-3 | Untitled #1 (Video) |
| Label: | Play It Again Sam [PIAS] 946.0102.122 |
| Genre: | Electronic |
| Style: | Abstract, Downtempo, Ambient |
| Format: | CD (Mini , Single) |
| 1 | Untitled | 6:43 |
| 2 | Remix Of Track 1 (1st Split) | 4:38 |
| 3 | Remix Of Track 1 (2nd Split) | 2:47 |
| 4 | Remix Of Track 1 (3rd Split) | 4:22 |
| Label: | MCA Records B0000271-11 |
| Genre: | Electronic |
| Style: | Ambient, Abstract, Downtempo |
| Format: | Vinyl (10") |
| A1 | Untitled | |
| A2 | Untitled | |
| B1 | Untitled | |
| B2 | Untitled |
| Label: | MCA Records B0000270-00 |
| Genre: | Electronic, Rock |
| Style: | Abstract, Post Rock, Experimental, Ambient |
| Format: | CD (Maxi-Single) DVD (Single) |
| CD-1 | Untitled #1 | 6:39 |
| CD-2 | Untitled #1 (Remix, Part 1) | 4:41 |
| CD-3 | Untitled #1 (Remix, Part 2) | 2:47 |
| CD-4 | Untitled #1 (Remix, Part 3) | 4:22 |
| DVD-1 | Svefn-g-englar (Video) | |
| DVD-2 | Viðrar Vel Til Loftárása (Video) | |
| DVD-3 | Untitled #1 (Video) |
| Label: | [PIAS] Recordings 946.0102.134 |
| Genre: | Electronic |
| Style: | Experimental, Ambient |
| Format: | Vinyl (10" , 33 ⅓ RPM , Single , Limited Edition) |
| A | Untitled #1 (a.k.a Vaka) | 6:43 |
| B1 | Untitled | 4:38 |
| B2 | Untitled » Piano [Uncredited Solo]: Orri | 2:47 |
| B3 | Untitled | 4:22 |
| Label: | Play It Again Sam [PIAS] 946.0102.178 |
| Genre: | Electronic, Rock |
| Style: | Post Rock, Minimal, Experimental, Ambient |
| Format: | CD (Single) DVD (DVD-Video) All Media |
| CD-1 | Untitled #1 (Vaka) | 6:43 |
| CD-2 | Untitled (Smáskífa 1) | 4:38 |
| CD-3 | Untitled (Smáskífa 2) » Piano [Uncredited Solo]: Orri | 2:47 |
| CD-4 | Untitled (Smáskífa 3) | 4:22 |
| DVD-1 | Svefn G Englar » Film Director: Lára Stefánsdóttir, Sigga Og Perlan, Sigur Rós, Ágúst Jakobsson | 9:17 |
| DVD-2 | Viðrar Vel Til Loftárása » Film Director: Árni & Kinski, Sigur Rós | 6:59 |
| DVD-3 | Untitled #1 (Vaka) » Film Director: Floria Sigismondi | 6:41 |
| Label: | FatCat Records CD10FAT02P |
| Genre: | Electronic |
| Style: | Abstract, Downtempo, Ambient |
| Format: | CDr (Promo) |
| 1 | Untitled | 6:43 |
| 2 | Remix Of Track 1 (1st Split) | 4:38 |
| 3 | Remix Of Track 1 (2nd Split) | 2:47 |
| 4 | Remix Of Track 1 (3rd Split) | 4:22 |
| Label: | [PIAS] Recordings 946.0102.178 |
| Genre: | Electronic, Rock |
| Style: | Post Rock, Experimental, Minimal, Ambient |
| Format: | CD (Single) DVD (DVD-Video) All Media |
| CD-1 | Untitled #1 (Vaka) | 6:43 |
| CD-2 | Untitled (Smáskífa 1) | 4:38 |
| CD-3 | Untitled (Smáskífa 2) » Piano [Uncredited Solo]: Orri | 2:47 |
| CD-4 | Untitled (Smáskífa 3) | 4:22 |
| DVD-1 | Svefn G Englar » Film Director: Lára Stefánsdóttir, Sigga Og Perlan, Sigur Rós, Ágúst Jakobsson | 9:17 |
| DVD-2 | Viðrar Vel Til Loftárása » Film Director: Árni & Kinski, Sigur Rós | 6:59 |
| DVD-3 | Untitled #1 (Vaka) » Film Director: Floria Sigismondi | 6:41 |
| Label: | MCA Records B0000272-52 |
| Genre: | Electronic, Rock |
| Style: | Post Rock, Experimental, Ambient |
| Format: | CD (Mini) |
| 1 | Untitled #1 | 6:43 |
| 2 | Untitled #1 (Remix, Part 1) | 4:38 |
| 3 | Untitled #1 (Remix, Part 2) | 2:47 |
| 4 | Untitled #1 (Remix, Part 3) | 4:22 |
| Label: | MCA Records 008811323394 |
| Genre: | Rock |
| Style: | Alternative Rock, Indie Rock |
| Format: | CD (EP) DVD |
| CD1 | Sigur 1 (Untitled) | |
| CD2 | Sigur 9 A (Untitled) | |
| CD3 | Sigur 9 B (Untitled) | |
| CD4 | Sigur 9 C (Untitled) | |
| DVD1 | Svefn G Englar (Video) | |
| DVD2 | Vidrar (Video) | |
| DVD3 | Untitled (Video) |