| File | Size | Date/time | Artist | Title | Year | Album | Comment | Length | Bi.. | C.. | S.. |
| U21.mp3 | 0.7 | 03.01.29 04:16:36 | | | | | | 0:00:46 | 128 | S | 44 |
| U21.mp3 | 0.7 | 03.05.14 06:19:17 | | | | | | 0:00:58 | 96 | S | 44 |
| U21-take1-cmp.mp3 | 4.7 | 01.07.23 06:55:26 | U21 | Take1 | | | | 0:09:52 | 64 | S | 44 |
| U21.MP3 | 1.4 | 02.01.05 00:37:10 | | | | | | 0:01:32 | 128 | S | 44 |
| U21-take1-cmp.mp3 | 4.7 | 01.07.23 05:25:57 | | | | | | 0:09:52 | 64 | S | 44 |
| U21.mp3 | 0.9 | 02.11.08 03:15:37 | | | | | Made with Sonic Foundry ACID 4 | 0:01:00 | 128 | S | 44 |
| U21-take1-cmp.mp3 | 4.7 | 01.07.23 05:25:57 | | | | | | 0:09:52 | 64 | S | 44 |
| U21-take1-cmp.mp3 | 4.7 | 01.07.23 06:55:26 | | | | | | 0:09:52 | 64 | S | 44 |
| U21.mp3 | 1.2 | 03.01.28 14:45:21 | In Negativland Catalog | From "Negativland Live at the | | | | | | | |
| U21.mp3 | 0.9 | 02.11.08 03:15:37 | | | | | Made with Sonic Foundry ACID 4 | 0:01:00 | 128 | S | 44 |
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