It's Thrilljockey bands covering songs of other bands on the label. A few examples:
2. John Parish - Vampiring Again (by Califone)
3. Arbouretum - Bus Stop (by Thalia Zedek)
4. Califone - Jewel (by Freakwater)
5. The Sea and Cake - Spider?s House (by Califone)
http://thrilljockey.com/catalog/?id=101588