| ID | Interpret | Skladba | Album | |
| 61. | Finkbeiner | track2 | The Challenge - CR16 |  |
| 62. | Finkbeiner | track 2 | The Challenge - CR16 | |
| 63. | environmental sound collapse | chuffnut avalanche | 48 hour challenge | |
| 64. | Red Army Choir | Down Under | Music Challenge 1 |  |
| 65. | Kids Inc. - Renee Sands | I Can Do It | Basketball Challenge | |
| 66. | The 99p Challenge | Richard Herring, Peter Baynham, Simon Pegg, Mel Geidroyc | 99p Challenge Series 01 | |
| 67. | Kavin.'s Acoustic Church | 07-John's Rag | "Westward":RPM Challenge '08 | |
| 68. | Dr. Von Pnok | Dr Von Pnok ifuckedyourmomwithaknife | 48 Hour Challenge | |
| 69. | Kavin.'s Acoustic Church | 10-runnin outta time | "Westward":RPM Challenge '08 | |
| 70. | Ortho Pharmaceutical Corporation | Makin Whoopee | The Challenge of Change | |
| 71. | Kavin.'s Acoustic Church | 03-decent descent | "Westward":RPM Challenge '08 | |
| 72. | Kavin.'s Acoustic Church | 06-eulogy-February 5th | "Westward":RPM Challenge '08 | |
| 73. | Tom Dean | Thirty Day Challenge Day 9 | My Thirty Day Challenge | |
| 74. | Altus | Frequency Junction | Organbient Challenge #3 | |
| 75. | Francesco Ferorelli | IEEE Jordan Water | Global Water Challenge | |
| 76. | glomag | 4shame | 8 Bit Collective 48 Hour Challenge | |
| 77. | Carter Conlon | The Last Day Image of Christ | ©2008 World Challenge, Inc | |
| 78. | Dripping, Sopping: A Saturation Celebration | BALLAD | (tba) - RPM Challenge postmarked version | |
| 79. | Carter Conlon | Touching the Tears of Failure | ©2008 World Challenge Inc. | |
| 80. | Carter Conlon | When Lions Have Nothing More To Say | (C)2008 World Challenge, Inc. | |
| 81. | Pal Satpal | Jawani - www.Songs.PK | Challenge To Gurdas Maan | |
| 82. | State Vector Collapse | Excerpt B from Unlistenable Yet Far Less Annoying Than The Sounds Looping Continuously Inside My Head | RPM Challenge 2008 Submission | |
| 83. | Francesco Ferorell | IEEE Saranga Vox | Global Water Challenge | |
| 84. | Dripping, Sopping: A Saturation Celebration | FUCK THAT, SON | (tba) - RPM Challenge postmarked version | |
| 85. | Will D. Jones | IEEE Toilet Water | Global Water Challenge | |
| 86. | Carter Conlon | The Willingness to Love | ©2008 World Challenge Inc. | |
| 87. | Dripping, Sopping: A Saturation Celebration | TIT SPIT! | (tba) - RPM Challenge postmarked version | |
| 88. | Joe Dolce | Thriller | Triple M Musical Challenge | |
| 89. | Dripping, Sopping: A Saturation Celebration | RE: STEVE ALBINI | (tba) - RPM Challenge postmarked version | |
| 90. | The Champs | Panic Button | Challenge 9116; aka Suicide | |
